./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX --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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:45:24,502 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:45:24,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-08 17:45:24,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:45:24,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:45:24,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:45:24,672 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:45:24,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:45:24,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:45:24,679 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:45:24,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:45:24,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:45:24,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:45:24,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:45:24,682 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:45:24,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:45:24,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:45:24,688 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:45:24,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:45:24,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:45:24,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:45:24,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:45:24,694 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:45:24,694 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 17:45:24,695 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:45:24,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:45:24,695 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:45:24,696 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:45:24,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:45:24,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:45:24,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:45:24,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:24,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:45:24,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:45:24,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:45:24,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:45:24,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:45:24,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:45:24,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:45:24,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:45:24,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:45:24,701 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014
[2024-11-08 17:45:25,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:45:25,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:45:25,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:45:25,121 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:45:25,122 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:45:25,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
Unable to find full path for "g++"
[2024-11-08 17:45:27,561 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:45:28,036 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:45:28,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
[2024-11-08 17:45:28,073 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/eba86d12d/05887f58160240ea9df39614f7280725/FLAG4471b0d36
[2024-11-08 17:45:28,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/eba86d12d/05887f58160240ea9df39614f7280725
[2024-11-08 17:45:28,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:45:28,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:45:28,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:28,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:45:28,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:45:28,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:28" (1/1) ...
[2024-11-08 17:45:28,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292c7fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:28, skipping insertion in model container
[2024-11-08 17:45:28,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:28" (1/1) ...
[2024-11-08 17:45:28,232 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:45:29,575 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:29,596 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:45:29,760 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:30,030 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:45:30,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30 WrapperNode
[2024-11-08 17:45:30,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:30,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:30,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:45:30,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:45:30,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,117 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73
[2024-11-08 17:45:30,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:30,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:45:30,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:45:30,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:45:30,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,136 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,161 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].
[2024-11-08 17:45:30,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:45:30,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:45:30,199 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:45:30,199 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:45:30,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (1/1) ...
[2024-11-08 17:45:30,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:30,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:30,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:45:30,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:45:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-08 17:45:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-08 17:45:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:45:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:45:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:45:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:45:30,502 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:45:30,506 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:45:30,705 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live.
[2024-11-08 17:45:30,705 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:45:30,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:45:30,721 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:45:30,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:30 BoogieIcfgContainer
[2024-11-08 17:45:30,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:45:30,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:45:30,726 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:45:30,731 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:45:30,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:45:28" (1/3) ...
[2024-11-08 17:45:30,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446987ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:30, skipping insertion in model container
[2024-11-08 17:45:30,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:30" (2/3) ...
[2024-11-08 17:45:30,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446987ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:30, skipping insertion in model container
[2024-11-08 17:45:30,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:30" (3/3) ...
[2024-11-08 17:45:30,736 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
[2024-11-08 17:45:30,763 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:45:30,764 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 17:45:30,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:45:30,856 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;@12dfeb26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:45:30,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 17:45:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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)
[2024-11-08 17:45:30,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:45:30,873 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:30,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:30,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 17:45:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times
[2024-11-08 17:45:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:45:30,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091403176]
[2024-11-08 17:45:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:45:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:45:31,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:45:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:45:31,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 17:45:31,211 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:45:31,212 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-08 17:45:31,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-08 17:45:31,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:45:31,221 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-08 17:45:31,248 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:45:31,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:45:31 BoogieIcfgContainer
[2024-11-08 17:45:31,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:45:31,253 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:45:31,253 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:45:31,253 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:45:31,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:30" (3/4) ...
[2024-11-08 17:45:31,256 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 17:45:31,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:45:31,259 INFO L158 Benchmark]: Toolchain (without parser) took 3153.59ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 112.3MB in the beginning and 118.7MB in the end (delta: -6.4MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,259 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 155.2MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:45:31,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1925.16ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 111.8MB in the beginning and 158.6MB in the end (delta: -46.8MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.65ms. Allocated memory is still 201.3MB. Free memory was 158.6MB in the beginning and 155.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,261 INFO L158 Benchmark]: Boogie Preprocessor took 77.06ms. Allocated memory is still 201.3MB. Free memory was 155.4MB in the beginning and 153.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,262 INFO L158 Benchmark]: RCFGBuilder took 523.55ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 138.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,263 INFO L158 Benchmark]: TraceAbstraction took 526.25ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 118.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
[2024-11-08 17:45:31,263 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 201.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:45:31,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32ms. Allocated memory is still 155.2MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1925.16ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 111.8MB in the beginning and 158.6MB in the end (delta: -46.8MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 84.65ms. Allocated memory is still 201.3MB. Free memory was 158.6MB in the beginning and 155.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 77.06ms. Allocated memory is still 201.3MB. Free memory was 155.4MB in the beginning and 153.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 523.55ms. Allocated memory is still 201.3MB. Free memory was 153.3MB in the beginning and 138.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 526.25ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 118.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB.
* Witness Printer took 4.84ms. Allocated memory is still 201.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563.
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]
[L1577] 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)
[L1577] 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]
[L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad()
[L1558] int data;
[L1559] void (*funcPtr) (int) = badSink;
[L1560] data = 0
[L1562] 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]
[L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1565] data = atoi(inputBuffer)
[L1572] CALL funcPtr(data)
[L1551] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 25 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=25occurred 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-08 17:45:31,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX --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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:45:34,117 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:45:34,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-11-08 17:45:34,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:45:34,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:45:34,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-11-08 17:45:34,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:45:34,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:45:34,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:45:34,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:45:34,313 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:45:34,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:45:34,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:45:34,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:45:34,319 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:45:34,320 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:45:34,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:45:34,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:45:34,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:45:34,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:45:34,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:45:34,327 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:45:34,327 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:45:34,327 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 17:45:34,328 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:45:34,328 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-08 17:45:34,329 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:45:34,329 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-08 17:45:34,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:45:34,330 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:45:34,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:45:34,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:45:34,334 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:45:34,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:45:34,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:34,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:45:34,335 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:45:34,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:45:34,337 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 17:45:34,337 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:45:34,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:45:34,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:45:34,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:45:34,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:45:34,339 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014
[2024-11-08 17:45:34,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:45:34,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:45:34,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:45:34,917 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:45:34,918 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:45:34,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
Unable to find full path for "g++"
[2024-11-08 17:45:37,115 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:45:37,602 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:45:37,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
[2024-11-08 17:45:37,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/0bb9946bd/90d7849c41024029bd3646cfac176673/FLAG847e68583
[2024-11-08 17:45:37,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/data/0bb9946bd/90d7849c41024029bd3646cfac176673
[2024-11-08 17:45:37,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:45:37,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:45:37,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:37,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:45:37,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:45:37,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a79e9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:37, skipping insertion in model container
[2024-11-08 17:45:37,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:37" (1/1) ...
[2024-11-08 17:45:37,857 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:45:39,379 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:39,399 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:45:39,568 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:45:39,724 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:45:39,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39 WrapperNode
[2024-11-08 17:45:39,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:45:39,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:39,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:45:39,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:45:39,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,795 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 72
[2024-11-08 17:45:39,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:45:39,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:45:39,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:45:39,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:45:39,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,855 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].
[2024-11-08 17:45:39,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:45:39,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:45:39,900 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:45:39,900 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:45:39,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (1/1) ...
[2024-11-08 17:45:39,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:45:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:39,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:45:39,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:45:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-08 17:45:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-08 17:45:39,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:45:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:45:39,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:45:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:45:40,264 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:45:40,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:45:40,503 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live.
[2024-11-08 17:45:40,503 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:45:40,520 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:45:40,521 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:45:40,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:40 BoogieIcfgContainer
[2024-11-08 17:45:40,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:45:40,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:45:40,525 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:45:40,529 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:45:40,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:45:37" (1/3) ...
[2024-11-08 17:45:40,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac4c7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:40, skipping insertion in model container
[2024-11-08 17:45:40,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:39" (2/3) ...
[2024-11-08 17:45:40,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac4c7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:40, skipping insertion in model container
[2024-11-08 17:45:40,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:40" (3/3) ...
[2024-11-08 17:45:40,536 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i
[2024-11-08 17:45:40,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:45:40,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-08 17:45:40,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:45:40,643 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;@eda2fcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:45:40,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-08 17:45:40,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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)
[2024-11-08 17:45:40,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-08 17:45:40,656 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:45:40,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:45:40,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-08 17:45:40,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:45:40,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times
[2024-11-08 17:45:40,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:45:40,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478682255]
[2024-11-08 17:45:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:45:40,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:40,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:45:40,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:45:40,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:45:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:45:40,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 17:45:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 17:45:40,965 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace
[2024-11-08 17:45:40,967 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-08 17:45:40,969 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-08 17:45:40,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-08 17:45:41,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-08 17:45:41,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:45:41,175 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-08 17:45:41,201 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:45:41,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:45:41 BoogieIcfgContainer
[2024-11-08 17:45:41,227 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:45:41,228 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:45:41,228 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:45:41,228 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:45:41,229 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:40" (3/4) ...
[2024-11-08 17:45:41,232 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-08 17:45:41,233 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:45:41,235 INFO L158 Benchmark]: Toolchain (without parser) took 3492.60ms. Allocated memory was 69.2MB in the beginning and 111.1MB in the end (delta: 41.9MB). Free memory was 42.0MB in the beginning and 80.8MB in the end (delta: -38.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,236 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:45:41,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1981.28ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 54.8MB in the end (delta: -12.9MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.48ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 51.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,241 INFO L158 Benchmark]: Boogie Preprocessor took 103.28ms. Allocated memory is still 92.3MB. Free memory was 51.4MB in the beginning and 48.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,241 INFO L158 Benchmark]: RCFGBuilder took 622.03ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 57.7MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,242 INFO L158 Benchmark]: TraceAbstraction took 702.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.8MB in the beginning and 81.5MB in the end (delta: -24.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
[2024-11-08 17:45:41,243 INFO L158 Benchmark]: Witness Printer took 5.77ms. Allocated memory is still 111.1MB. Free memory was 81.5MB in the beginning and 80.8MB in the end (delta: 616.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:45:41,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 1981.28ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 54.8MB in the end (delta: -12.9MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 69.48ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 51.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 103.28ms. Allocated memory is still 92.3MB. Free memory was 51.4MB in the beginning and 48.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 622.03ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 57.7MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 702.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.8MB in the beginning and 81.5MB in the end (delta: -24.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB.
* Witness Printer took 5.77ms. Allocated memory is still 111.1MB. Free memory was 81.5MB in the beginning and 80.8MB in the end (delta: 616.5kB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563.
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]
[L1577] 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)
[L1577] 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]
[L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad()
[L1558] int data;
[L1559] void (*funcPtr) (int) = badSink;
[L1560] data = 0
[L1562] 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]
[L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1565] data = atoi(inputBuffer)
[L1572] CALL funcPtr(data)
[L1551] data--
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=25occurred 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-08 17:45:41,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f0b146a-661e-40d4-a650-73686fe1007e/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample