./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC --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 bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:06:48,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:06:49,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 00:06:49,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:06:49,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:06:49,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:06:49,067 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:06:49,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:06:49,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:06:49,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:06:49,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:06:49,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:06:49,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:06:49,069 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:06:49,069 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:06:49,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:06:49,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:06:49,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:06:49,070 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:06:49,071 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:49,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:49,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:49,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:06:49,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:06:49,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:06:49,073 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_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC 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 -> bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 [2024-11-24 00:06:49,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:06:49,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:06:49,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:06:49,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:06:49,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:06:49,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:06:52,592 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/69c4abf42/d1018d7f1da64e9185a065c6e488cc57/FLAGaf5c5b6f4 [2024-11-24 00:06:53,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:06:53,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:06:53,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/69c4abf42/d1018d7f1da64e9185a065c6e488cc57/FLAGaf5c5b6f4 [2024-11-24 00:06:53,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/69c4abf42/d1018d7f1da64e9185a065c6e488cc57 [2024-11-24 00:06:53,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:06:53,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:06:53,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:53,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:06:53,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:06:53,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:53" (1/1) ... [2024-11-24 00:06:53,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278e25f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:53, skipping insertion in model container [2024-11-24 00:06:53,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:53" (1/1) ... [2024-11-24 00:06:53,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:06:54,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:54,165 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:06:54,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:54,418 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:06:54,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54 WrapperNode [2024-11-24 00:06:54,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:54,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:54,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:06:54,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:06:54,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,465 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2024-11-24 00:06:54,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:54,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:06:54,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:06:54,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:06:54,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,490 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]. [2024-11-24 00:06:54,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,496 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:06:54,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:06:54,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:06:54,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:06:54,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (1/1) ... [2024-11-24 00:06:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:54,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:06:54,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:06:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:06:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:06:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:06:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:06:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:06:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:06:54,711 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:06:54,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:06:54,831 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-24 00:06:54,831 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:06:54,839 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:06:54,840 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:06:54,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:54 BoogieIcfgContainer [2024-11-24 00:06:54,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:06:54,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:06:54,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:06:54,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:06:54,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:06:53" (1/3) ... [2024-11-24 00:06:54,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0bb5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:54, skipping insertion in model container [2024-11-24 00:06:54,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:54" (2/3) ... [2024-11-24 00:06:54,849 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0bb5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:54, skipping insertion in model container [2024-11-24 00:06:54,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:54" (3/3) ... [2024-11-24 00:06:54,850 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:06:54,866 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:06:54,867 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_65_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 00:06:54,921 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:54,933 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;@164ced9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:54,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:06:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:06:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 00:06:54,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:06:54,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:06:54,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:06:54,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2024-11-24 00:06:54,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:54,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098010338] [2024-11-24 00:06:54,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:54,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:55,088 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:06:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:55,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:06:55,137 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:06:55,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 00:06:55,140 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 00:06:55,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:06:55,145 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:06:55,165 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:06:55,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:06:55 BoogieIcfgContainer [2024-11-24 00:06:55,168 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:06:55,169 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:06:55,169 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:06:55,169 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:06:55,170 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:54" (3/4) ... [2024-11-24 00:06:55,172 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:06:55,172 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:06:55,174 INFO L158 Benchmark]: Toolchain (without parser) took 2019.36ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 75.1MB in the end (delta: 27.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-24 00:06:55,174 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:06:55,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1263.57ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 43.2MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-24 00:06:55,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.52ms. Allocated memory is still 142.6MB. Free memory was 43.2MB in the beginning and 40.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:06:55,175 INFO L158 Benchmark]: Boogie Preprocessor took 38.10ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 38.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:06:55,175 INFO L158 Benchmark]: RCFGBuilder took 336.11ms. Allocated memory is still 142.6MB. Free memory was 38.7MB in the beginning and 93.3MB in the end (delta: -54.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-11-24 00:06:55,176 INFO L158 Benchmark]: TraceAbstraction took 325.70ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 75.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:06:55,176 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 142.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:06:55,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1263.57ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 43.2MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.52ms. Allocated memory is still 142.6MB. Free memory was 43.2MB in the beginning and 40.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.10ms. Allocated memory is still 142.6MB. Free memory was 40.3MB in the beginning and 38.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.11ms. Allocated memory is still 142.6MB. Free memory was 38.7MB in the beginning and 93.3MB in the end (delta: -54.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 325.70ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 75.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 142.6MB. Free memory is still 75.1MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_sub_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_sub_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:06:55,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC --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 bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:06:58,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:06:58,149 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-24 00:06:58,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:06:58,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:06:58,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-24 00:06:58,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:06:58,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:06:58,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:06:58,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:06:58,209 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:06:58,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:06:58,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:06:58,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:06:58,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:06:58,210 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:06:58,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:06:58,212 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:06:58,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:06:58,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:58,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:58,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:06:58,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:06:58,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:06:58,215 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_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC 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 -> bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 [2024-11-24 00:06:58,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:06:58,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:06:58,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:06:58,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:06:58,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:06:58,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:07:01,906 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/6a0eec40e/4c33e10f05d24474bec907cde0082583/FLAGf9e208a8b [2024-11-24 00:07:02,339 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:07:02,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:07:02,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/6a0eec40e/4c33e10f05d24474bec907cde0082583/FLAGf9e208a8b [2024-11-24 00:07:02,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/data/6a0eec40e/4c33e10f05d24474bec907cde0082583 [2024-11-24 00:07:02,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:07:02,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:07:02,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:07:02,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:07:02,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:07:02,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:07:02" (1/1) ... [2024-11-24 00:07:02,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6559aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:02, skipping insertion in model container [2024-11-24 00:07:02,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:07:02" (1/1) ... [2024-11-24 00:07:02,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:07:03,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:07:03,360 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:07:03,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:07:03,669 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:07:03,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03 WrapperNode [2024-11-24 00:07:03,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:07:03,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:07:03,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:07:03,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:07:03,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,720 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2024-11-24 00:07:03,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:07:03,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:07:03,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:07:03,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:07:03,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,732 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,748 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]. [2024-11-24 00:07:03,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,760 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:07:03,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:07:03,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:07:03,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:07:03,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (1/1) ... [2024-11-24 00:07:03,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:07:03,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:03,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:07:03,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:07:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:07:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:07:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:07:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:07:03,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:07:03,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:07:04,016 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:07:04,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:07:04,221 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-24 00:07:04,222 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:07:04,237 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:07:04,238 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:07:04,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:07:04 BoogieIcfgContainer [2024-11-24 00:07:04,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:07:04,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:07:04,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:07:04,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:07:04,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:07:02" (1/3) ... [2024-11-24 00:07:04,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17080cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:07:04, skipping insertion in model container [2024-11-24 00:07:04,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:07:03" (2/3) ... [2024-11-24 00:07:04,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17080cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:07:04, skipping insertion in model container [2024-11-24 00:07:04,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:07:04" (3/3) ... [2024-11-24 00:07:04,258 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2024-11-24 00:07:04,276 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:07:04,279 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_65_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 00:07:04,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:07:04,411 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;@323389e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:07:04,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:07:04,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:07:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 00:07:04,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:07:04,425 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:07:04,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:07:04,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2024-11-24 00:07:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:07:04,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416317765] [2024-11-24 00:07:04,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:04,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:04,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:07:04,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:07:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:07:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:07:04,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:07:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:07:04,736 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 00:07:04,738 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:07:04,739 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 00:07:04,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 00:07:04,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:07:04,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:07:04,948 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:07:04,976 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:07:04,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:07:04 BoogieIcfgContainer [2024-11-24 00:07:04,984 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:07:04,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:07:04,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:07:04,984 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:07:04,985 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:07:04" (3/4) ... [2024-11-24 00:07:04,987 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:07:04,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:07:04,991 INFO L158 Benchmark]: Toolchain (without parser) took 2601.10ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 64.2MB in the end (delta: 17.4MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-11-24 00:07:04,991 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:07:04,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1279.48ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 60.2MB in the end (delta: 21.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-24 00:07:04,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.93ms. Allocated memory is still 109.1MB. Free memory was 60.2MB in the beginning and 57.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:07:04,992 INFO L158 Benchmark]: Boogie Preprocessor took 54.67ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:07:04,992 INFO L158 Benchmark]: RCFGBuilder took 464.14ms. Allocated memory is still 109.1MB. Free memory was 54.9MB in the beginning and 41.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:07:04,993 INFO L158 Benchmark]: TraceAbstraction took 741.25ms. Allocated memory is still 109.1MB. Free memory was 40.6MB in the beginning and 64.2MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:07:04,993 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 109.1MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:07:04,995 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1279.48ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 60.2MB in the end (delta: 21.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.93ms. Allocated memory is still 109.1MB. Free memory was 60.2MB in the beginning and 57.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.67ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 464.14ms. Allocated memory is still 109.1MB. Free memory was 54.9MB in the beginning and 41.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 741.25ms. Allocated memory is still 109.1MB. Free memory was 40.6MB in the beginning and 64.2MB in the end (delta: -23.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 109.1MB. Free memory is still 64.2MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_sub_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_sub_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:07:05,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5c623e-e0e3-48f0-b1f3-042cdde4c7d1/bin/uautomizer-verify-LYvppIcaGC/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