./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_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_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/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_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/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_64f1d792-b28a-48f9-9106-e90c7cea1a28/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 00b9dd557219bafb84f7cbb7f8ae1b89e6cfb511fbadbd5cdec28bd83190b016
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:28:57,318 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:28:57,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-12-02 08:28:57,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:28:57,381 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:28:57,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:28:57,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:28:57,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:28:57,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:28:57,404 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 08:28:57,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:28:57,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:28:57,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:28:57,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 08:28:57,404 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 08:28:57,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 08:28:57,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 08:28:57,406 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:28:57,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 08:28:57,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:28:57,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:28:57,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:28:57,407 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_64f1d792-b28a-48f9-9106-e90c7cea1a28/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 -> 00b9dd557219bafb84f7cbb7f8ae1b89e6cfb511fbadbd5cdec28bd83190b016
[2024-12-02 08:28:57,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:28:57,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:28:57,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:28:57,655 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 08:28:57,656 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 08:28:57,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_bad.i
[2024-12-02 08:29:00,276 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/data/0a63d452d/217145fb3cc748d6ad9e83f761d90ed5/FLAGd2d11fd4e
[2024-12-02 08:29:00,592 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 08:29:00,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_bad.i
[2024-12-02 08:29:00,613 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/data/0a63d452d/217145fb3cc748d6ad9e83f761d90ed5/FLAGd2d11fd4e
[2024-12-02 08:29:00,628 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/data/0a63d452d/217145fb3cc748d6ad9e83f761d90ed5
[2024-12-02 08:29:00,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:29:00,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:29:00,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:29:00,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:29:00,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:29:00,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:00" (1/1) ...
[2024-12-02 08:29:00,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccfd575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:00, skipping insertion in model container
[2024-12-02 08:29:00,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:29:00" (1/1) ...
[2024-12-02 08:29:00,677 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:29:01,274 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:29:01,282 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 08:29:01,353 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:29:01,433 INFO L204 MainTranslator]: Completed translation
[2024-12-02 08:29:01,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01 WrapperNode
[2024-12-02 08:29:01,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:29:01,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:29:01,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:29:01,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:29:01,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,478 INFO L138 Inliner]: procedures = 497, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60
[2024-12-02 08:29:01,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:29:01,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:29:01,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:29:01,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:29:01,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,496 INFO L175 MemorySlicer]: No memory access in input program.
[2024-12-02 08:29:01,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,500 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:29:01,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:29:01,506 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:29:01,506 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:29:01,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (1/1) ...
[2024-12-02 08:29:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:29:01,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:29:01,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:29:01,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:29:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine
[2024-12-02 08:29:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine
[2024-12-02 08:29:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse
[2024-12-02 08:29:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse
[2024-12-02 08:29:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-12-02 08:29:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-12-02 08:29:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:29:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:29:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:29:01,664 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 08:29:01,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:29:01,772 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-12-02 08:29:01,772 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 08:29:01,779 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:29:01,779 INFO L312 CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 08:29:01,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:01 BoogieIcfgContainer
[2024-12-02 08:29:01,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:29:01,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:29:01,781 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:29:01,785 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:29:01,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:29:00" (1/3) ...
[2024-12-02 08:29:01,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10594372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:01, skipping insertion in model container
[2024-12-02 08:29:01,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:29:01" (2/3) ...
[2024-12-02 08:29:01,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10594372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:29:01, skipping insertion in model container
[2024-12-02 08:29:01,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:01" (3/3) ...
[2024-12-02 08:29:01,787 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_12_bad.i
[2024-12-02 08:29:01,802 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:29:01,804 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fscanf_postdec_12_bad.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 4 error locations.
[2024-12-02 08:29:01,855 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:29:01,866 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;@1b5656e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:29:01,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-12-02 08:29:01,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-12-02 08:29:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-12-02 08:29:01,875 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 08:29:01,876 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:29:01,876 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] ===
[2024-12-02 08:29:01,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:29:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2020560884, now seen corresponding path program 1 times
[2024-12-02 08:29:01,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:29:01,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759515039]
[2024-12-02 08:29:01,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:29:01,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:29:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:29:01,985 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-12-02 08:29:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-12-02 08:29:02,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-12-02 08:29:02,033 INFO L340 BasicCegarLoop]: Counterexample is feasible
[2024-12-02 08:29:02,034 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining)
[2024-12-02 08:29:02,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining)
[2024-12-02 08:29:02,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining)
[2024-12-02 08:29:02,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining)
[2024-12-02 08:29:02,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 08:29:02,042 INFO L422 BasicCegarLoop]: Path program histogram: [1]
[2024-12-02 08:29:02,064 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-12-02 08:29:02,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:29:02 BoogieIcfgContainer
[2024-12-02 08:29:02,067 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-12-02 08:29:02,068 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-12-02 08:29:02,068 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-12-02 08:29:02,068 INFO L274 PluginConnector]: Witness Printer initialized
[2024-12-02 08:29:02,069 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:29:01" (3/4) ...
[2024-12-02 08:29:02,069 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample
[2024-12-02 08:29:02,112 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11.
[2024-12-02 08:29:02,146 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml
[2024-12-02 08:29:02,146 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/bin/uautomizer-verify-84ZbGMXZE1/witness.yml
[2024-12-02 08:29:02,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-12-02 08:29:02,147 INFO L158 Benchmark]: Toolchain (without parser) took 1516.38ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 75.8MB in the end (delta: 38.4MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,147 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:29:02,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.73ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 54.1MB in the end (delta: 59.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.25ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 112.1MB in the end (delta: -58.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,148 INFO L158 Benchmark]: Boogie Preprocessor took 26.30ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-12-02 08:29:02,149 INFO L158 Benchmark]: RCFGBuilder took 272.92ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,149 INFO L158 Benchmark]: TraceAbstraction took 286.46ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 81.5MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,149 INFO L158 Benchmark]: Witness Printer took 78.76ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 75.8MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-12-02 08:29:02,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 801.73ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 54.1MB in the end (delta: 59.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 44.25ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 112.1MB in the end (delta: -58.0MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 26.30ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 110.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 272.92ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 286.46ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 81.5MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Witness Printer took 78.76ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 75.8MB in the end (delta: 5.7MB). 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: 1563]: 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]
[L1585] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={2:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1585] 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]
[L1586] CALL CWE191_Integer_Underflow__int_fscanf_postdec_12_bad()
[L1550] int data;
[L1551] data = 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]
[L1552] CALL globalReturnsTrueOrFalse()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1520] return (rand() % 2);
[L1552] RET globalReturnsTrueOrFalse()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1552] COND TRUE globalReturnsTrueOrFalse()
[L1560] CALL globalReturnsTrueOrFalse()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1520] return (rand() % 2);
[L1560] RET globalReturnsTrueOrFalse()
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1560] COND TRUE globalReturnsTrueOrFalse()
[L1563] 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: 1563]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: Not analyzed.
- UnprovableResult [Line: 1572]: 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 4 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, 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=40occurred 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, 21 NumberOfCodeBlocks, 21 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 08:29:02,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64f1d792-b28a-48f9-9106-e90c7cea1a28/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)