./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_66_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_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/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_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/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_624f57fc-d5f8-4b25-878a-6500cee5e0c5/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 a1b1aa8fd486a852ab1954a54305c703fd6efd58345233677fa8b4e8b9c4394e
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 10:09:24,225 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 10:09:24,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-12-02 10:09:24,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 10:09:24,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 10:09:24,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 10:09:24,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 10:09:24,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 10:09:24,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 10:09:24,305 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 10:09:24,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 10:09:24,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 10:09:24,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 10:09:24,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 10:09:24,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 10:09:24,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 10:09:24,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:09:24,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:24,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:24,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 10:09:24,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 10:09:24,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 10:09:24,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 10:09:24,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 10:09:24,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 10:09:24,309 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_624f57fc-d5f8-4b25-878a-6500cee5e0c5/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 -> a1b1aa8fd486a852ab1954a54305c703fd6efd58345233677fa8b4e8b9c4394e
[2024-12-02 10:09:24,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 10:09:24,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 10:09:24,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 10:09:24,530 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 10:09:24,530 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 10:09:24,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_66_bad.i
[2024-12-02 10:09:27,147 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/data/91985e89d/28036fcfb21b4f66acba077fba0dc2e4/FLAGbe83dd220
[2024-12-02 10:09:27,441 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 10:09:27,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_66_bad.i
[2024-12-02 10:09:27,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/data/91985e89d/28036fcfb21b4f66acba077fba0dc2e4/FLAGbe83dd220
[2024-12-02 10:09:27,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/data/91985e89d/28036fcfb21b4f66acba077fba0dc2e4
[2024-12-02 10:09:27,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 10:09:27,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 10:09:27,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 10:09:27,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 10:09:27,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 10:09:27,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:27" (1/1) ...
[2024-12-02 10:09:27,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49835da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:27, skipping insertion in model container
[2024-12-02 10:09:27,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:09:27" (1/1) ...
[2024-12-02 10:09:27,523 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 10:09:28,182 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:09:28,190 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 10:09:28,266 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 10:09:28,373 INFO L204 MainTranslator]: Completed translation
[2024-12-02 10:09:28,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28 WrapperNode
[2024-12-02 10:09:28,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 10:09:28,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 10:09:28,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 10:09:28,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 10:09:28,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,412 INFO L138 Inliner]: procedures = 498, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47
[2024-12-02 10:09:28,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 10:09:28,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 10:09:28,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 10:09:28,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 10:09:28,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,432 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1].
[2024-12-02 10:09:28,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 10:09:28,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 10:09:28,441 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 10:09:28,441 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 10:09:28,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (1/1) ...
[2024-12-02 10:09:28,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 10:09:28,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 10:09:28,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 10:09:28,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 10:09:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 10:09:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 10:09:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 10:09:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 10:09:28,613 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 10:09:28,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 10:09:28,701 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live.
[2024-12-02 10:09:28,701 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 10:09:28,707 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 10:09:28,707 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 10:09:28,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:28 BoogieIcfgContainer
[2024-12-02 10:09:28,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 10:09:28,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 10:09:28,709 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 10:09:28,713 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 10:09:28,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:09:27" (1/3) ...
[2024-12-02 10:09:28,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40886282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:28, skipping insertion in model container
[2024-12-02 10:09:28,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:09:28" (2/3) ...
[2024-12-02 10:09:28,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40886282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:09:28, skipping insertion in model container
[2024-12-02 10:09:28,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:28" (3/3) ...
[2024-12-02 10:09:28,716 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_66_bad.i
[2024-12-02 10:09:28,731 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 10:09:28,732 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fscanf_sub_66_bad.i that has 2 procedures, 20 locations, 1 initial locations, 0 loop locations, and 2 error locations.
[2024-12-02 10:09:28,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 10:09:28,793 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;@3686900e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 10:09:28,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-12-02 10:09:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-12-02 10:09:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-12-02 10:09:28,802 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 10:09:28,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 10:09:28,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-12-02 10:09:28,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 10:09:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1855260787, now seen corresponding path program 1 times
[2024-12-02 10:09:28,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 10:09:28,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999790626]
[2024-12-02 10:09:28,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 10:09:28,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 10:09:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 10:09:28,921 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 10:09:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 10:09:28,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 10:09:28,961 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 10:09:28,962 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-12-02 10:09:28,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-12-02 10:09:28,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 10:09:28,967 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 10:09:28,983 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 10:09:28,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:09:28 BoogieIcfgContainer
[2024-12-02 10:09:28,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 10:09:28,987 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 10:09:28,987 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 10:09:28,987 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 10:09:28,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:09:28" (3/4) ...
[2024-12-02 10:09:28,988 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-02 10:09:29,016 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6.
[2024-12-02 10:09:29,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 10:09:29,049 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 10:09:29,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 10:09:29,050 INFO L158 Benchmark]: Toolchain (without parser) took 1570.46ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 71.3MB in the end (delta: 43.9MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,050 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:09:29,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.94ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 108.1MB in the end (delta: 6.9MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 105.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 10:09:29,051 INFO L158 Benchmark]: Boogie Preprocessor took 28.28ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,051 INFO L158 Benchmark]: RCFGBuilder took 266.35ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 92.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,051 INFO L158 Benchmark]: TraceAbstraction took 277.78ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 75.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,052 INFO L158 Benchmark]: Witness Printer took 62.03ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 71.3MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 10:09:29,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 892.94ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 108.1MB in the end (delta: 6.9MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 37.85ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 105.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 28.28ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.4MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* RCFGBuilder took 266.35ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 92.2MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 277.78ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 75.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 62.03ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 71.3MB in the end (delta: 4.5MB). 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
- CounterExampleResult [Line: 1570]: integer overflow possible
integer overflow possible
We found a 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]
[L1561] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1561] 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]
[L1562] CALL CWE191_Integer_Underflow__int_fscanf_sub_66_bad()
[L1551] int data;
[L1552] int dataArray[5];
[L1553] data = 0
[L1555] dataArray[2] = data
[L1556] CALL CWE191_Integer_Underflow__int_fscanf_sub_66b_badSink(dataArray)
[L1568] EXPR dataArray[2]
[L1568] int data = dataArray[2];
[L1570] data - 1
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: 1570]: 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, 20 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=20occurred 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, 9 NumberOfCodeBlocks, 9 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 proved your program to be incorrect!
[2024-12-02 10:09:29,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624f57fc-d5f8-4b25-878a-6500cee5e0c5/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)