./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for overflows
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 22:42:01,084 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 22:42:01,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-11-07 22:42:01,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 22:42:01,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 22:42:01,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 22:42:01,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 22:42:01,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 22:42:01,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 22:42:01,188 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 22:42:01,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 22:42:01,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 22:42:01,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 22:42:01,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 22:42:01,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 22:42:01,189 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 22:42:01,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 22:42:01,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 22:42:01,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 22:42:01,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 22:42:01,191 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb
[2024-11-07 22:42:01,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 22:42:01,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 22:42:01,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 22:42:01,420 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 22:42:01,420 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 22:42:01,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:02,640 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 22:42:02,958 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 22:42:02,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:02,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/565e8e2b6/5cae52a9cab546c4890afc84567f752f/FLAG2a6d7398a
[2024-11-07 22:42:03,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/565e8e2b6/5cae52a9cab546c4890afc84567f752f
[2024-11-07 22:42:03,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 22:42:03,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 22:42:03,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 22:42:03,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 22:42:03,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 22:42:03,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@739b7eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03, skipping insertion in model container
[2024-11-07 22:42:03,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,260 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 22:42:03,750 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 22:42:03,758 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 22:42:03,825 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 22:42:03,915 INFO L204 MainTranslator]: Completed translation
[2024-11-07 22:42:03,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03 WrapperNode
[2024-11-07 22:42:03,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 22:42:03,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 22:42:03,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 22:42:03,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 22:42:03,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,966 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72
[2024-11-07 22:42:03,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 22:42:03,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 22:42:03,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 22:42:03,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 22:42:03,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,994 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].
[2024-11-07 22:42:03,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:03,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:04,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:04,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:04,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:04,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 22:42:04,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 22:42:04,011 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 22:42:04,011 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 22:42:04,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (1/1) ...
[2024-11-07 22:42:04,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 22:42:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 22:42:04,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 22:42:04,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 22:42:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-07 22:42:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-07 22:42:04,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 22:42:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 22:42:04,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 22:42:04,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 22:42:04,180 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 22:42:04,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 22:42:04,253 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-07 22:42:04,253 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 22:42:04,259 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 22:42:04,259 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 22:42:04,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:04 BoogieIcfgContainer
[2024-11-07 22:42:04,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 22:42:04,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 22:42:04,261 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 22:42:04,264 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 22:42:04,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:42:03" (1/3) ...
[2024-11-07 22:42:04,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1065e027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:42:04, skipping insertion in model container
[2024-11-07 22:42:04,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:03" (2/3) ...
[2024-11-07 22:42:04,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1065e027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:42:04, skipping insertion in model container
[2024-11-07 22:42:04,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:04" (3/3) ...
[2024-11-07 22:42:04,265 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:04,275 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 22:42:04,275 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 22:42:04,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 22:42:04,312 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;@38ab19b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 22:42:04,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 22:42:04,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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)
[2024-11-07 22:42:04,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-07 22:42:04,319 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 22:42:04,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 22:42:04,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-07 22:42:04,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 22:42:04,323 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times
[2024-11-07 22:42:04,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 22:42:04,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910886879]
[2024-11-07 22:42:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 22:42:04,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 22:42:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 22:42:04,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 22:42:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 22:42:04,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-07 22:42:04,506 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-07 22:42:04,507 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-07 22:42:04,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-07 22:42:04,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 22:42:04,511 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-07 22:42:04,531 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 22:42:04,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:42:04 BoogieIcfgContainer
[2024-11-07 22:42:04,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 22:42:04,536 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 22:42:04,537 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 22:42:04,537 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 22:42:04,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:04" (3/4) ...
[2024-11-07 22:42:04,539 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-07 22:42:04,541 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 22:42:04,542 INFO L158 Benchmark]: Toolchain (without parser) took 1322.75ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 73.1MB in the end (delta: 10.2MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB.
[2024-11-07 22:42:04,543 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 48.0MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:04,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 692.10ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 65.3MB in the end (delta: 17.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB.
[2024-11-07 22:42:04,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.02ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 62.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 22:42:04,544 INFO L158 Benchmark]: Boogie Preprocessor took 42.09ms. Allocated memory is still 109.1MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:04,544 INFO L158 Benchmark]: RCFGBuilder took 249.47ms. Allocated memory is still 109.1MB. Free memory was 61.0MB in the beginning and 49.0MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-07 22:42:04,545 INFO L158 Benchmark]: TraceAbstraction took 275.25ms. Allocated memory is still 109.1MB. Free memory was 48.5MB in the beginning and 73.1MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:04,546 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 18.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:04,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.49ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 48.0MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 692.10ms. Allocated memory is still 109.1MB. Free memory was 83.2MB in the beginning and 65.3MB in the end (delta: 17.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 50.02ms. Allocated memory is still 109.1MB. Free memory was 65.3MB in the beginning and 62.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.09ms. Allocated memory is still 109.1MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 249.47ms. Allocated memory is still 109.1MB. Free memory was 61.0MB in the beginning and 49.0MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 275.25ms. Allocated memory is still 109.1MB. Free memory was 48.5MB in the beginning and 73.1MB in the end (delta: -24.6MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.41ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 18.8kB). 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: 1554]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566.
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);
[L1548] static int badStatic = 0;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1581] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1581] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad()
[L1562] int data;
[L1563] data = 0
[L1565] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1568] data = atoi(inputBuffer)
[L1575] badStatic = 1
[L1576] CALL badSink(data)
[L1551] COND TRUE \read(badStatic)
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1554] --data
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1554]: 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: 0.2s, 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=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, 12 NumberOfCodeBlocks, 12 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
[2024-11-07 22:42:04,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/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: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 22:42:06,409 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-07 22:42:06,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-11-07 22:42:06,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 22:42:06,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 22:42:06,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-11-07 22:42:06,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 22:42:06,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 22:42:06,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 22:42:06,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 22:42:06,524 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-07 22:42:06,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 22:42:06,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 22:42:06,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 22:42:06,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-07 22:42:06,525 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-07 22:42:06,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-07 22:42:06,526 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-07 22:42:06,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-07 22:42:06,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 22:42:06,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 22:42:06,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 22:42:06,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 22:42:06,529 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb
[2024-11-07 22:42:06,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 22:42:06,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 22:42:06,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 22:42:06,783 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-07 22:42:06,783 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-07 22:42:06,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:07,915 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-07 22:42:08,177 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-07 22:42:08,177 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:08,205 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/256b3bbba/795c631519d04e89b87b8cbb908d1516/FLAGe46eeb5b0
[2024-11-07 22:42:08,485 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/256b3bbba/795c631519d04e89b87b8cbb908d1516
[2024-11-07 22:42:08,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 22:42:08,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 22:42:08,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 22:42:08,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 22:42:08,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 22:42:08,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:42:08" (1/1) ...
[2024-11-07 22:42:08,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d87e387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:08, skipping insertion in model container
[2024-11-07 22:42:08,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:42:08" (1/1) ...
[2024-11-07 22:42:08,520 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-07 22:42:09,023 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 22:42:09,041 INFO L200 MainTranslator]: Completed pre-run
[2024-11-07 22:42:09,142 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-07 22:42:09,248 INFO L204 MainTranslator]: Completed translation
[2024-11-07 22:42:09,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09 WrapperNode
[2024-11-07 22:42:09,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 22:42:09,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 22:42:09,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 22:42:09,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 22:42:09,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,288 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71
[2024-11-07 22:42:09,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 22:42:09,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 22:42:09,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 22:42:09,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 22:42:09,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,322 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].
[2024-11-07 22:42:09,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 22:42:09,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 22:42:09,350 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 22:42:09,350 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-07 22:42:09,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (1/1) ...
[2024-11-07 22:42:09,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 22:42:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 22:42:09,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 22:42:09,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 22:42:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-11-07 22:42:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-11-07 22:42:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-07 22:42:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 22:42:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 22:42:09,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 22:42:09,534 INFO L238 CfgBuilder]: Building ICFG
[2024-11-07 22:42:09,536 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 22:42:09,641 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-11-07 22:42:09,641 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-07 22:42:09,647 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 22:42:09,647 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-07 22:42:09,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:09 BoogieIcfgContainer
[2024-11-07 22:42:09,648 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 22:42:09,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 22:42:09,650 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 22:42:09,653 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-07 22:42:09,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:42:08" (1/3) ...
[2024-11-07 22:42:09,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31718a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:42:09, skipping insertion in model container
[2024-11-07 22:42:09,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:42:09" (2/3) ...
[2024-11-07 22:42:09,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31718a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:42:09, skipping insertion in model container
[2024-11-07 22:42:09,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:09" (3/3) ...
[2024-11-07 22:42:09,656 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i
[2024-11-07 22:42:09,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 22:42:09,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-11-07 22:42:09,714 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 22:42:09,726 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;@38379bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 22:42:09,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-11-07 22:42:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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)
[2024-11-07 22:42:09,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-07 22:42:09,735 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-07 22:42:09,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 22:42:09,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-11-07 22:42:09,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 22:42:09,739 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times
[2024-11-07 22:42:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-07 22:42:09,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823466824]
[2024-11-07 22:42:09,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 22:42:09,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-07 22:42:09,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-07 22:42:09,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-07 22:42:09,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-07 22:42:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 22:42:09,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-07 22:42:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-07 22:42:09,907 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2024-11-07 22:42:09,909 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-07 22:42:09,910 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-11-07 22:42:09,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-11-07 22:42:09,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-07 22:42:10,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-07 22:42:10,119 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-11-07 22:42:10,135 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-07 22:42:10,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:42:10 BoogieIcfgContainer
[2024-11-07 22:42:10,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-07 22:42:10,139 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-07 22:42:10,139 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-07 22:42:10,139 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-07 22:42:10,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:42:09" (3/4) ...
[2024-11-07 22:42:10,142 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-07 22:42:10,143 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-07 22:42:10,145 INFO L158 Benchmark]: Toolchain (without parser) took 1656.05ms. Allocated memory is still 83.9MB. Free memory was 57.2MB in the beginning and 40.0MB in the end (delta: 17.2MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB.
[2024-11-07 22:42:10,145 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:10,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 759.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 53.2MB in the end (delta: 3.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB.
[2024-11-07 22:42:10,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.83ms. Allocated memory is still 83.9MB. Free memory was 53.2MB in the beginning and 50.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:10,146 INFO L158 Benchmark]: Boogie Preprocessor took 60.56ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 48.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:10,147 INFO L158 Benchmark]: RCFGBuilder took 298.49ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 34.3MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-07 22:42:10,147 INFO L158 Benchmark]: TraceAbstraction took 487.74ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 40.5MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:10,149 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 83.9MB. Free memory was 40.5MB in the beginning and 40.0MB in the end (delta: 466.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-07 22:42:10,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.98ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 759.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 53.2MB in the end (delta: 3.8MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.83ms. Allocated memory is still 83.9MB. Free memory was 53.2MB in the beginning and 50.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 60.56ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 48.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 298.49ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 34.3MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 487.74ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 40.5MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.22ms. Allocated memory is still 83.9MB. Free memory was 40.5MB in the beginning and 40.0MB in the end (delta: 466.7kB). 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: 1554]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566.
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);
[L1548] static int badStatic = 0;
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1581] CALL printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414] COND TRUE line != ((void *)0)
[L1581] RET printLine("Calling bad()...")
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad()
[L1562] int data;
[L1563] data = 0
[L1565] char inputBuffer[(3 * sizeof(data) + 2)] = "";
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1568] data = atoi(inputBuffer)
[L1575] badStatic = 1
[L1576] CALL badSink(data)
[L1551] COND TRUE \read(badStatic)
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1554] --data
VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
- UnprovableResult [Line: 1554]: 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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
[2024-11-07 22:42:10,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample