./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_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_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/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_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/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_b30cf9cd-5979-4154-84cb-213da20f87ad/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 afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:48:13,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:48:13,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:48:13,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:48:13,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:48:13,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:48:13,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:48:13,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:48:13,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:48:13,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:48:13,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:48:13,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:48:13,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:48:13,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:48:13,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:48:13,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:48:13,958 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:48:13,959 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:48:13,959 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:48:13,959 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:48:13,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:48:13,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:48:13,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:48:13,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:48:13,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:48:13,960 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:48:13,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:48:13,960 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_b30cf9cd-5979-4154-84cb-213da20f87ad/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 -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2024-11-13 22:48:14,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:48:14,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:48:14,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:48:14,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:48:14,379 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:48:14,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i Unable to find full path for "g++" [2024-11-13 22:48:16,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:48:16,798 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:48:16,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2024-11-13 22:48:16,833 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/3b3812e10/a1019389575440e995c8fcdc565d491f/FLAGcf8babfee [2024-11-13 22:48:16,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/3b3812e10/a1019389575440e995c8fcdc565d491f [2024-11-13 22:48:16,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:48:16,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:48:16,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:48:16,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:48:16,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:48:16,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:48:16" (1/1) ... [2024-11-13 22:48:16,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403de175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:16, skipping insertion in model container [2024-11-13 22:48:16,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:48:16" (1/1) ... [2024-11-13 22:48:16,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:48:18,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:48:18,058 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:48:18,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:48:18,423 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:48:18,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18 WrapperNode [2024-11-13 22:48:18,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:48:18,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:48:18,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:48:18,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:48:18,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,517 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 22:48:18,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:48:18,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:48:18,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:48:18,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:48:18,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,535 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:48:18,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:48:18,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:48:18,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:48:18,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:18" (1/1) ... [2024-11-13 22:48:18,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:48:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:48:18,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:48:18,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:48:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:48:18,657 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:48:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:48:18,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:48:18,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:48:18,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:48:18,859 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:48:18,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:48:19,074 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 22:48:19,074 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:48:19,135 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:48:19,136 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:48:19,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:19 BoogieIcfgContainer [2024-11-13 22:48:19,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:48:19,137 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:48:19,138 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:48:19,149 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:48:19,149 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:19" (1/1) ... [2024-11-13 22:48:19,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:48:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:48:19,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 22:48:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 22:48:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:48:19,230 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:48:19,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:48:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:19,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:48:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:19,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:48:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:19,738 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:48:19,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:48:19 ImpRootNode [2024-11-13 22:48:19,787 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:48:19,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:48:19,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:48:19,790 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:48:19,791 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:19" (3/4) ... [2024-11-13 22:48:19,796 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:48:19,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:48:19,799 INFO L158 Benchmark]: Toolchain (without parser) took 2934.42ms. Allocated memory is still 109.1MB. Free memory was 79.6MB in the beginning and 72.8MB in the end (delta: 6.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-13 22:48:19,802 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:19,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1559.47ms. Allocated memory is still 109.1MB. Free memory was 79.2MB in the beginning and 61.6MB in the end (delta: 17.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 22:48:19,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.46ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:19,803 INFO L158 Benchmark]: Boogie Preprocessor took 44.29ms. Allocated memory is still 109.1MB. Free memory was 59.0MB in the beginning and 57.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:19,804 INFO L158 Benchmark]: RCFGBuilder took 568.91ms. Allocated memory is still 109.1MB. Free memory was 57.6MB in the beginning and 43.6MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:48:19,804 INFO L158 Benchmark]: CodeCheck took 649.48ms. Allocated memory is still 109.1MB. Free memory was 43.6MB in the beginning and 73.5MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:19,805 INFO L158 Benchmark]: Witness Printer took 9.06ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.8MB in the end (delta: 749.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:19,810 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, 18 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 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 0.48ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1559.47ms. Allocated memory is still 109.1MB. Free memory was 79.2MB in the beginning and 61.6MB in the end (delta: 17.6MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.46ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.29ms. Allocated memory is still 109.1MB. Free memory was 59.0MB in the beginning and 57.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.91ms. Allocated memory is still 109.1MB. Free memory was 57.6MB in the beginning and 43.6MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 649.48ms. Allocated memory is still 109.1MB. Free memory was 43.6MB in the beginning and 73.5MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.06ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 72.8MB in the end (delta: 749.1kB). 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 22:48:19,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/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_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/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_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/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_b30cf9cd-5979-4154-84cb-213da20f87ad/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 afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:48:22,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:48:23,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:48:23,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:48:23,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:48:23,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:48:23,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:48:23,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:48:23,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:48:23,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:48:23,055 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:48:23,056 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:48:23,056 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:48:23,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:48:23,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:48:23,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:48:23,056 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:48:23,057 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:48:23,057 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:48:23,057 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:48:23,057 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:48:23,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:48:23,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:48:23,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:48:23,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:48:23,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:48:23,058 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:48:23,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:48:23,058 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:48:23,058 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_b30cf9cd-5979-4154-84cb-213da20f87ad/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 -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2024-11-13 22:48:23,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:48:23,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:48:23,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:48:23,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:48:23,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:48:23,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i Unable to find full path for "g++" [2024-11-13 22:48:25,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:48:25,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:48:25,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2024-11-13 22:48:25,967 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/0aa92dcc8/38ddd8848cfe473188434c30f5241915/FLAGa8709b039 [2024-11-13 22:48:26,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/data/0aa92dcc8/38ddd8848cfe473188434c30f5241915 [2024-11-13 22:48:26,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:48:26,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:48:26,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:48:26,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:48:26,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:48:26,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:48:26" (1/1) ... [2024-11-13 22:48:26,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d9bf9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:26, skipping insertion in model container [2024-11-13 22:48:26,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:48:26" (1/1) ... [2024-11-13 22:48:26,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:48:27,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:48:27,134 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:48:27,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:48:27,473 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:48:27,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27 WrapperNode [2024-11-13 22:48:27,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:48:27,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:48:27,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:48:27,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:48:27,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,550 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-13 22:48:27,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:48:27,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:48:27,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:48:27,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:48:27,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:48:27,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:48:27,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:48:27,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:48:27,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:48:27" (1/1) ... [2024-11-13 22:48:27,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:48:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:48:27,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:48:27,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:48:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:48:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:48:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:48:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:48:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:48:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:48:27,865 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:48:27,868 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:48:28,062 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 22:48:28,062 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:48:28,161 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:48:28,161 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:48:28,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:28 BoogieIcfgContainer [2024-11-13 22:48:28,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:48:28,163 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:48:28,163 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:48:28,187 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:48:28,187 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:28" (1/1) ... [2024-11-13 22:48:28,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:48:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:48:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 22:48:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 22:48:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:48:28,265 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:48:28,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:48:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:48:28,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:48:28,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:48:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:28,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:48:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:28,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:48:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:48:28,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:48:28,824 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:48:28,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:48:28 ImpRootNode [2024-11-13 22:48:28,859 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:48:28,861 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:48:28,861 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:48:28,862 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:48:28,863 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:48:28" (3/4) ... [2024-11-13 22:48:28,866 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:48:28,867 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:48:28,869 INFO L158 Benchmark]: Toolchain (without parser) took 2736.18ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 33.6MB in the end (delta: 23.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-13 22:48:28,869 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:28,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1340.71ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.3MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-13 22:48:28,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.78ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:28,873 INFO L158 Benchmark]: Boogie Preprocessor took 35.91ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:28,873 INFO L158 Benchmark]: RCFGBuilder took 572.87ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 29.1MB in the end (delta: 16.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:48:28,873 INFO L158 Benchmark]: CodeCheck took 696.78ms. Allocated memory is still 83.9MB. Free memory was 29.1MB in the beginning and 34.0MB in the end (delta: -5.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-13 22:48:28,874 INFO L158 Benchmark]: Witness Printer took 6.74ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 33.6MB in the end (delta: 422.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:48:28,876 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, 18 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, 9 NumberOfCodeBlocks, 9 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 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 0.59ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1340.71ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.3MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.78ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.5MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.91ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 46.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 572.87ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 29.1MB in the end (delta: 16.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 696.78ms. Allocated memory is still 83.9MB. Free memory was 29.1MB in the beginning and 34.0MB in the end (delta: -5.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 6.74ms. Allocated memory is still 83.9MB. Free memory was 34.0MB in the beginning and 33.6MB in the end (delta: 422.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:48:28,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b30cf9cd-5979-4154-84cb-213da20f87ad/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample