./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm --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 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:54:32,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:54:32,719 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 20:54:32,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:54:32,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:54:32,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:54:32,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:54:32,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:54:32,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:54:32,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:54:32,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:54:32,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:54:32,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:54:32,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:54:32,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:54:32,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:54:32,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:54:32,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:54:32,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:54:32,766 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:54:32,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:54:32,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:54:32,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:54:32,767 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:54:32,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:54:32,767 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_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm 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 -> 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb [2024-11-13 20:54:33,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:54:33,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:54:33,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:54:33,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:54:33,106 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:54:33,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i Unable to find full path for "g++" [2024-11-13 20:54:35,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:54:35,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:54:35,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i [2024-11-13 20:54:35,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/303ccc7da/855389ce677741409e31140d88079182/FLAG05565fade [2024-11-13 20:54:35,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/303ccc7da/855389ce677741409e31140d88079182 [2024-11-13 20:54:35,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:54:35,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:54:35,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:54:35,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:54:35,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:54:35,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:54:35" (1/1) ... [2024-11-13 20:54:35,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42bcac76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:35, skipping insertion in model container [2024-11-13 20:54:35,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:54:35" (1/1) ... [2024-11-13 20:54:35,558 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:54:36,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:54:36,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:54:36,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:54:36,824 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:54:36,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36 WrapperNode [2024-11-13 20:54:36,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:54:36,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:54:36,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:54:36,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:54:36,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,902 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-13 20:54:36,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:54:36,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:54:36,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:54:36,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:54:36,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:54:36,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:54:36,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:54:36,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:54:36,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:36" (1/1) ... [2024-11-13 20:54:36,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:54:36,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:54:36,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:54:36,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:54:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:54:36,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:54:36,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:54:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:54:36,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:54:36,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:54:37,153 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:54:37,155 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:54:37,320 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 20:54:37,320 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:54:37,384 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:54:37,385 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:54:37,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:37 BoogieIcfgContainer [2024-11-13 20:54:37,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:54:37,388 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:54:37,389 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:54:37,401 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:54:37,401 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:37" (1/1) ... [2024-11-13 20:54:37,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:54:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:54:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:54:37,480 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:54:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:54:37,484 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:54:37,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:54:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:37,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:54:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:37,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:54:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:37,772 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:54:37,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:54:37 ImpRootNode [2024-11-13 20:54:37,813 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:54:37,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:54:37,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:54:37,815 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:54:37,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:37" (3/4) ... [2024-11-13 20:54:37,818 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:54:37,820 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:54:37,822 INFO L158 Benchmark]: Toolchain (without parser) took 2328.93ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 46.9MB in the end (delta: 41.8MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-13 20:54:37,824 INFO L158 Benchmark]: CDTParser took 1.53ms. Allocated memory is still 83.9MB. Free memory was 41.8MB in the beginning and 41.6MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:37,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1330.53ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 79.6MB in the end (delta: 8.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 20:54:37,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.55ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 76.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:54:37,826 INFO L158 Benchmark]: Boogie Preprocessor took 30.88ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.9MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:37,826 INFO L158 Benchmark]: RCFGBuilder took 450.98ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 61.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:54:37,828 INFO L158 Benchmark]: CodeCheck took 424.75ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 46.9MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:54:37,830 INFO L158 Benchmark]: Witness Printer took 6.54ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 46.9MB in the end (delta: 5.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:37,836 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 0.0s 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 - UnprovableResult [Line: 1568]: 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 large string literal at line 1576, 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=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) [L1568] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53ms. Allocated memory is still 83.9MB. Free memory was 41.8MB in the beginning and 41.6MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1330.53ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 79.6MB in the end (delta: 8.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.55ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 76.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.88ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.9MB in the end (delta: 727.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.98ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 61.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 424.75ms. Allocated memory is still 117.4MB. Free memory was 61.3MB in the beginning and 46.9MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 6.54ms. Allocated memory is still 117.4MB. Free memory was 46.9MB in the beginning and 46.9MB in the end (delta: 5.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:54:37,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/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_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm --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 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:54:40,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:54:41,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 20:54:41,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:54:41,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:54:41,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:54:41,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:54:41,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:54:41,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:54:41,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:54:41,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:54:41,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:54:41,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:54:41,154 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:54:41,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:54:41,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:54:41,155 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:54:41,155 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:54:41,155 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:54:41,156 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:54:41,156 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:54:41,156 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:54:41,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:54:41,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:54:41,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:54:41,157 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:54:41,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:54:41,157 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:54:41,157 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:54:41,157 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:54:41,158 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_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm 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 -> 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb [2024-11-13 20:54:41,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:54:41,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:54:41,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:54:41,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:54:41,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:54:41,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i Unable to find full path for "g++" [2024-11-13 20:54:43,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:54:44,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:54:44,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i [2024-11-13 20:54:44,246 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/357804db1/05141ba7e8474b1280e075fe11197852/FLAGb11d995db [2024-11-13 20:54:44,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/data/357804db1/05141ba7e8474b1280e075fe11197852 [2024-11-13 20:54:44,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:54:44,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:54:44,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:54:44,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:54:44,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:54:44,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:54:44" (1/1) ... [2024-11-13 20:54:44,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c94120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:44, skipping insertion in model container [2024-11-13 20:54:44,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:54:44" (1/1) ... [2024-11-13 20:54:44,370 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:54:45,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:54:45,492 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:54:45,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:54:45,844 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:54:45,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45 WrapperNode [2024-11-13 20:54:45,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:54:45,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:54:45,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:54:45,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:54:45,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,901 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-13 20:54:45,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:54:45,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:54:45,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:54:45,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:54:45,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:54:45,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:54:45,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:54:45,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:54:45,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:54:45" (1/1) ... [2024-11-13 20:54:45,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:54:45,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:54:46,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:54:46,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:54:46,040 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:54:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:54:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:54:46,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:54:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:54:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:54:46,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:54:46,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:54:46,433 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 20:54:46,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:54:46,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:54:46,517 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:54:46,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:46 BoogieIcfgContainer [2024-11-13 20:54:46,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:54:46,519 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:54:46,519 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:54:46,529 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:54:46,529 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:46" (1/1) ... [2024-11-13 20:54:46,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:54:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:54:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:54:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:54:46,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:54:46,601 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:54:46,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:54:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:54:46,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:54:46,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:54:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:46,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:54:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:46,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:54:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:54:46,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:54:46,977 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:54:47,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:54:47 ImpRootNode [2024-11-13 20:54:47,013 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:54:47,015 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:54:47,015 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:54:47,015 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:54:47,017 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:54:46" (3/4) ... [2024-11-13 20:54:47,019 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:54:47,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:54:47,021 INFO L158 Benchmark]: Toolchain (without parser) took 2744.92ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 82.3MB in the end (delta: 8.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-13 20:54:47,022 INFO L158 Benchmark]: CDTParser took 3.78ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:47,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1566.21ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 79.5MB in the end (delta: 11.5MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-13 20:54:47,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.24ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:47,026 INFO L158 Benchmark]: Boogie Preprocessor took 50.24ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:47,026 INFO L158 Benchmark]: RCFGBuilder took 564.42ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 58.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:54:47,027 INFO L158 Benchmark]: CodeCheck took 494.78ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 82.3MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:47,027 INFO L158 Benchmark]: Witness Printer took 5.84ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:54:47,031 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 0.0s 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 - UnprovableResult [Line: 1568]: 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 large string literal at line 1576, 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=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) [L1568] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.78ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1566.21ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 79.5MB in the end (delta: 11.5MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.24ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.24ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 564.42ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 58.8MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 494.78ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 82.3MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.84ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 82.3MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:54:47,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_342b4214-c619-424d-aee8-ed0ee89b16ac/bin/ukojak-verify-EEHR8qb7sm/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