./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3 --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:38:27,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:38:27,468 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:38:27,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:38:27,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:38:27,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:38:27,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:38:27,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:38:27,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:38:27,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:38:27,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:38:27,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:38:27,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:38:27,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:38:27,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:38:27,514 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:38:27,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:38:27,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:38:27,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:38:27,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:38:27,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:38:27,515 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:38:27,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:38:27,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3 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 -> Kojak 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 -> 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 [2024-11-25 04:38:27,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:38:27,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:38:27,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:38:27,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:38:27,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:38:27,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-25 04:38:31,061 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/c9e175a33/b0fe983ba29f4f059eeca40862076570/FLAGead647fe5 [2024-11-25 04:38:31,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:38:31,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-25 04:38:31,599 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/c9e175a33/b0fe983ba29f4f059eeca40862076570/FLAGead647fe5 [2024-11-25 04:38:31,627 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/c9e175a33/b0fe983ba29f4f059eeca40862076570 [2024-11-25 04:38:31,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:38:31,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:38:31,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:38:31,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:38:31,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:38:31,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:38:31" (1/1) ... [2024-11-25 04:38:31,644 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1023b711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:31, skipping insertion in model container [2024-11-25 04:38:31,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:38:31" (1/1) ... [2024-11-25 04:38:31,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:38:32,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:38:32,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:38:32,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:38:32,927 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:38:32,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32 WrapperNode [2024-11-25 04:38:32,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:38:32,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:38:32,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:38:32,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:38:32,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:32,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:32,990 INFO L138 Inliner]: procedures = 498, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-25 04:38:32,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:38:32,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:38:32,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:38:32,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:38:32,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:32,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,008 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:38:33,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:38:33,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:38:33,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:38:33,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:32" (1/1) ... [2024-11-25 04:38:33,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:38:33,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:38:33,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:38:33,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:38:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:38:33,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:38:33,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:38:33,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:38:33,244 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:38:33,245 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:38:33,369 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 04:38:33,370 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:38:33,420 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:38:33,421 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:38:33,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:33 BoogieIcfgContainer [2024-11-25 04:38:33,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:38:33,422 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:38:33,422 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:38:33,433 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:38:33,433 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:33" (1/1) ... [2024-11-25 04:38:33,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:38:33,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:38:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:38:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:38:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:38:33,504 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:38:33,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:38:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:33,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:38:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:33,940 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:38:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:33,993 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:38:34,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:38:34 ImpRootNode [2024-11-25 04:38:34,031 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:38:34,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:38:34,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:38:34,032 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:38:34,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:33" (3/4) ... [2024-11-25 04:38:34,036 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:38:34,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:38:34,038 INFO L158 Benchmark]: Toolchain (without parser) took 2406.64ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 39.3MB in the end (delta: 50.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-25 04:38:34,039 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:34,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1292.63ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 81.7MB in the end (delta: 7.9MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-25 04:38:34,040 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.82ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.9MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:38:34,040 INFO L158 Benchmark]: Boogie Preprocessor took 23.30ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:34,041 INFO L158 Benchmark]: RCFGBuilder took 405.64ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:38:34,041 INFO L158 Benchmark]: CodeCheck took 609.16ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 39.8MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:38:34,042 INFO L158 Benchmark]: Witness Printer took 5.39ms. Allocated memory is still 117.4MB. Free memory was 39.8MB in the beginning and 39.3MB in the end (delta: 579.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:34,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={11653:0}, dataPtr2={11653:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1292.63ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 81.7MB in the end (delta: 7.9MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.82ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.9MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.30ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 405.64ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 609.16ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 39.8MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.39ms. Allocated memory is still 117.4MB. Free memory was 39.8MB in the beginning and 39.3MB in the end (delta: 579.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:38:34,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3 --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:38:36,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:38:37,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:38:37,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:38:37,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:38:37,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:38:37,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:38:37,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:38:37,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:38:37,126 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:38:37,127 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:38:37,127 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:38:37,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:38:37,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:38:37,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:38:37,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:38:37,129 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:38:37,129 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:38:37,129 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:38:37,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3 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 -> Kojak 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 -> 6c23a8a06a4d21c8f1b6b74885c3e110f23c69fd1fed76d4a4842ce33a495577 [2024-11-25 04:38:37,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:38:37,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:38:37,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:38:37,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:38:37,456 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:38:37,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-25 04:38:40,571 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/97a1c3d42/dfe696c1a5384244bcef01599ff2ff20/FLAGc2de933b5 [2024-11-25 04:38:40,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:38:41,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_32_bad.i [2024-11-25 04:38:41,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/97a1c3d42/dfe696c1a5384244bcef01599ff2ff20/FLAGc2de933b5 [2024-11-25 04:38:41,142 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/data/97a1c3d42/dfe696c1a5384244bcef01599ff2ff20 [2024-11-25 04:38:41,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:38:41,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:38:41,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:38:41,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:38:41,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:38:41,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:38:41" (1/1) ... [2024-11-25 04:38:41,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d42bb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:41, skipping insertion in model container [2024-11-25 04:38:41,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:38:41" (1/1) ... [2024-11-25 04:38:41,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:38:42,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:38:42,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:38:42,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:38:42,599 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:38:42,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42 WrapperNode [2024-11-25 04:38:42,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:38:42,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:38:42,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:38:42,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:38:42,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,647 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,686 INFO L138 Inliner]: procedures = 503, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-25 04:38:42,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:38:42,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:38:42,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:38:42,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:38:42,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,722 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:38:42,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:38:42,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:38:42,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:38:42,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:38:42" (1/1) ... [2024-11-25 04:38:42,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:38:42,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:38:42,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:38:42,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:38:42,827 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:38:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:38:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 04:38:42,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:38:42,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 04:38:43,005 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:38:43,007 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:38:43,197 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 04:38:43,197 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:38:43,246 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:38:43,247 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:38:43,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:43 BoogieIcfgContainer [2024-11-25 04:38:43,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:38:43,248 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:38:43,248 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:38:43,260 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:38:43,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:43" (1/1) ... [2024-11-25 04:38:43,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:38:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:38:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:38:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:38:43,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:38:43,333 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:38:43,334 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:38:43,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:38:43,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:38:43,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:38:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:43,718 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:38:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:44,018 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:38:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:38:44,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:38:44,098 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:38:44,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:38:44 ImpRootNode [2024-11-25 04:38:44,128 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:38:44,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:38:44,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:38:44,129 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:38:44,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:38:43" (3/4) ... [2024-11-25 04:38:44,133 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:38:44,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:38:44,135 INFO L158 Benchmark]: Toolchain (without parser) took 2987.45ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 89.1MB in the beginning and 205.8MB in the end (delta: -116.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-25 04:38:44,136 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 54.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:44,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1450.19ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 67.2MB in the end (delta: 21.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-25 04:38:44,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.56ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 64.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:44,137 INFO L158 Benchmark]: Boogie Preprocessor took 57.10ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:44,138 INFO L158 Benchmark]: RCFGBuilder took 501.31ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 45.0MB in the end (delta: 17.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:38:44,138 INFO L158 Benchmark]: CodeCheck took 879.90ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 45.0MB in the beginning and 205.8MB in the end (delta: -160.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:44,139 INFO L158 Benchmark]: Witness Printer took 5.30ms. Allocated memory is still 251.7MB. Free memory was 205.8MB in the beginning and 205.8MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:38:44,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 54.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1450.19ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 67.2MB in the end (delta: 21.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.56ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 64.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.10ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 62.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.31ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 45.0MB in the end (delta: 17.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 879.90ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 45.0MB in the beginning and 205.8MB in the end (delta: -160.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.30ms. Allocated memory is still 251.7MB. Free memory was 205.8MB in the beginning and 205.8MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:38:44,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aeccc4d3-8377-4e38-882f-384567ccbb41/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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