./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk --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 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:38:04,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:38:04,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:38:04,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:38:04,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:38:04,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:38:04,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:38:04,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:38:04,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:38:04,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:38:04,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:38:04,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:38:04,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:38:04,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:38:04,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:38:04,180 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:38:04,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:38:04,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:38:04,182 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:38:04,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:38:04,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:38:04,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:38:04,188 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:38:04,188 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:38:04,188 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:38:04,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:38:04,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:38:04,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:38:04,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:38:04,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:38:04,192 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:38:04,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:38:04,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2024-11-08 23:38:04,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:38:04,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:38:04,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:38:04,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:38:04,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:38:04,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i Unable to find full path for "g++" [2024-11-08 23:38:06,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:38:07,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:38:07,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-08 23:38:07,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/f51524d0e/a18fe6a338d9402d874f5946df17bc7e/FLAGb5f3a2e6a [2024-11-08 23:38:07,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/f51524d0e/a18fe6a338d9402d874f5946df17bc7e [2024-11-08 23:38:07,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:38:07,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:38:07,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:07,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:38:07,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:38:07,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:07" (1/1) ... [2024-11-08 23:38:07,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7fcc6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:07, skipping insertion in model container [2024-11-08 23:38:07,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:07" (1/1) ... [2024-11-08 23:38:07,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:38:08,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:08,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:38:08,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:08,816 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:38:08,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08 WrapperNode [2024-11-08 23:38:08,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:08,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:08,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:38:08,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:38:08,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,882 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-08 23:38:08,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:08,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:38:08,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:38:08,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:38:08,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:38:08,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:38:08,933 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:38:08,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:38:08,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:08" (1/1) ... [2024-11-08 23:38:08,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:38:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:38:08,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:38:08,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:38:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:38:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:38:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:38:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:38:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:38:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:38:09,260 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:38:09,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:38:09,402 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 23:38:09,402 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:38:09,470 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:38:09,471 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:38:09,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:09 BoogieIcfgContainer [2024-11-08 23:38:09,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:38:09,472 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:38:09,472 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:38:09,485 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:38:09,486 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:09" (1/1) ... [2024-11-08 23:38:09,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:38:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:38:09,570 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:38:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:38:09,574 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:38:09,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:38:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:09,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:38:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:09,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:38:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:09,978 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:38:10,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:38:10 ImpRootNode [2024-11-08 23:38:10,027 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:38:10,028 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:38:10,028 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:38:10,028 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:38:10,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:09" (3/4) ... [2024-11-08 23:38:10,032 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:38:10,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:38:10,035 INFO L158 Benchmark]: Toolchain (without parser) took 2922.73ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 98.5MB in the beginning and 146.1MB in the end (delta: -47.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:10,035 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 140.5MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:10,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1702.46ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 98.5MB in the beginning and 126.0MB in the end (delta: -27.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2024-11-08 23:38:10,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.97ms. Allocated memory is still 188.7MB. Free memory was 126.0MB in the beginning and 122.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:38:10,039 INFO L158 Benchmark]: Boogie Preprocessor took 41.15ms. Allocated memory is still 188.7MB. Free memory was 122.7MB in the beginning and 121.8MB in the end (delta: 895.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:10,039 INFO L158 Benchmark]: RCFGBuilder took 542.47ms. Allocated memory is still 188.7MB. Free memory was 121.8MB in the beginning and 105.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:38:10,040 INFO L158 Benchmark]: CodeCheck took 554.81ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 147.1MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:10,043 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 188.7MB. Free memory was 147.1MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:10,049 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: 0.5s, 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 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. 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_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] 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 0.34ms. Allocated memory is still 140.5MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1702.46ms. Allocated memory was 140.5MB in the beginning and 188.7MB in the end (delta: 48.2MB). Free memory was 98.5MB in the beginning and 126.0MB in the end (delta: -27.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.97ms. Allocated memory is still 188.7MB. Free memory was 126.0MB in the beginning and 122.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.15ms. Allocated memory is still 188.7MB. Free memory was 122.7MB in the beginning and 121.8MB in the end (delta: 895.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 542.47ms. Allocated memory is still 188.7MB. Free memory was 121.8MB in the beginning and 105.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 554.81ms. Allocated memory is still 188.7MB. Free memory was 105.9MB in the beginning and 147.1MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 188.7MB. Free memory was 147.1MB in the beginning and 146.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:38:10,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk --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 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:38:12,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:38:12,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:38:12,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:38:12,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:38:12,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:38:12,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:38:12,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:38:12,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:38:12,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:38:12,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:38:12,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:38:12,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:38:12,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:38:12,665 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:38:12,666 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:38:12,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:38:12,667 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:38:12,667 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:38:12,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:38:12,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:38:12,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:38:12,671 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:38:12,672 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:38:12,675 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:38:12,675 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:38:12,675 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:38:12,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:38:12,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:38:12,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:38:12,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:38:12,678 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:38:12,678 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:38:12,678 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:38:12,679 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:38:12,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2024-11-08 23:38:13,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:38:13,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:38:13,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:38:13,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:38:13,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:38:13,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i Unable to find full path for "g++" [2024-11-08 23:38:15,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:38:15,843 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:38:15,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-08 23:38:15,881 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/82a73fcff/de84ad02ae604df991ebc2008b8374c3/FLAG42420c63e [2024-11-08 23:38:15,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/data/82a73fcff/de84ad02ae604df991ebc2008b8374c3 [2024-11-08 23:38:15,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:38:15,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:38:15,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:15,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:38:15,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:38:15,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:15" (1/1) ... [2024-11-08 23:38:15,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba3d75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:15, skipping insertion in model container [2024-11-08 23:38:15,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:15" (1/1) ... [2024-11-08 23:38:15,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:38:17,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:17,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:38:17,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:38:17,487 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:38:17,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17 WrapperNode [2024-11-08 23:38:17,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:38:17,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:17,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:38:17,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:38:17,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,550 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-08 23:38:17,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:38:17,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:38:17,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:38:17,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:38:17,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:38:17,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:38:17,585 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:38:17,585 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:38:17,586 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:17" (1/1) ... [2024-11-08 23:38:17,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:38:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:38:17,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:38:17,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:38:17,655 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:38:17,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:38:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:38:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:38:17,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:38:17,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:38:17,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:38:17,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:38:17,984 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 23:38:17,985 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:38:18,072 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:38:18,076 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:38:18,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:18 BoogieIcfgContainer [2024-11-08 23:38:18,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:38:18,078 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:38:18,078 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:38:18,092 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:38:18,092 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:18" (1/1) ... [2024-11-08 23:38:18,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:38:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:38:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:38:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:38:18,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:38:18,186 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:38:18,186 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:38:18,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:38:18,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:38:18,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:38:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:18,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:38:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:18,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:38:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:38:18,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:38:18,690 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:38:18,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:38:18 ImpRootNode [2024-11-08 23:38:18,733 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:38:18,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:38:18,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:38:18,735 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:38:18,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:18" (3/4) ... [2024-11-08 23:38:18,740 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:38:18,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:38:18,742 INFO L158 Benchmark]: Toolchain (without parser) took 2833.18ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 54.6MB in the beginning and 65.7MB in the end (delta: -11.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-08 23:38:18,742 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:18,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1577.41ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 41.8MB in the end (delta: 12.4MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-11-08 23:38:18,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.99ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 39.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:18,744 INFO L158 Benchmark]: Boogie Preprocessor took 32.06ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 36.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:38:18,745 INFO L158 Benchmark]: RCFGBuilder took 492.81ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 36.9MB in the beginning and 59.5MB in the end (delta: -22.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 23:38:18,746 INFO L158 Benchmark]: CodeCheck took 655.44ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 65.7MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:18,747 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 100.7MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:38:18,755 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: 0.6s, 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. 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_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] 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 0.26ms. Allocated memory is still 65.0MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1577.41ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 41.8MB in the end (delta: 12.4MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.99ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 39.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.06ms. Allocated memory is still 81.8MB. Free memory was 39.0MB in the beginning and 36.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.81ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 36.9MB in the beginning and 59.5MB in the end (delta: -22.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 655.44ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 65.7MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 100.7MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:38:18,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c21f2290-b8a8-4838-a72f-19cce331d4a7/bin/ukojak-verify-ImItNfHLgk/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