./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:58:21,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:58:22,041 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 16:58:22,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:58:22,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:58:22,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:58:22,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:58:22,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:58:22,084 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:58:22,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:58:22,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:58:22,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:58:22,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:58:22,086 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:58:22,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:58:22,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:58:22,086 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:58:22,086 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:58:22,086 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:58:22,087 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:58:22,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:58:22,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:22,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:58:22,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:58:22,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:58:22,088 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:58:22,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:58:22,088 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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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 -> 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 [2024-11-13 16:58:22,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:58:22,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:58:22,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:58:22,456 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:58:22,457 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:58:22,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i Unable to find full path for "g++" [2024-11-13 16:58:24,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:58:25,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:58:25,105 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-11-13 16:58:25,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/fd1d84dfa/b80521df85124fd0808e4b5cdfd0846f/FLAG9a32df097 [2024-11-13 16:58:25,170 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/fd1d84dfa/b80521df85124fd0808e4b5cdfd0846f [2024-11-13 16:58:25,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:58:25,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:58:25,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:25,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:58:25,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:58:25,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:25" (1/1) ... [2024-11-13 16:58:25,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bc1871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:25, skipping insertion in model container [2024-11-13 16:58:25,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:25" (1/1) ... [2024-11-13 16:58:25,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:58:26,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:26,342 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:58:26,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:26,728 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:58:26,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26 WrapperNode [2024-11-13 16:58:26,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:26,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:26,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:58:26,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:58:26,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,804 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-13 16:58:26,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:26,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:58:26,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:58:26,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:58:26,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:58:26,840 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:58:26,840 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:58:26,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:58:26,841 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:26" (1/1) ... [2024-11-13 16:58:26,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:58:26,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:58:26,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:58:26,902 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:58:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:58:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:58:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:58:26,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:58:26,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:58:27,084 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:58:27,086 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:58:27,243 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 16:58:27,243 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:58:27,298 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:58:27,298 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:58:27,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:27 BoogieIcfgContainer [2024-11-13 16:58:27,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:58:27,299 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:58:27,300 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:58:27,312 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:58:27,312 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:27" (1/1) ... [2024-11-13 16:58:27,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:58:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:27,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 16:58:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 16:58:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:58:27,396 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:58:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:27,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:58:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:27,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:58:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:27,705 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:58:27,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:58:27 ImpRootNode [2024-11-13 16:58:27,741 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:58:27,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:58:27,744 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:58:27,744 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:58:27,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:27" (3/4) ... [2024-11-13 16:58:27,747 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:58:27,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:58:27,750 INFO L158 Benchmark]: Toolchain (without parser) took 2576.18ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 40.9MB in the end (delta: 49.0MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-11-13 16:58:27,752 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:27,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1554.19ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 79.0MB in the end (delta: 10.6MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2024-11-13 16:58:27,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.62ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:58:27,754 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 75.4MB in the end (delta: 576.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:27,755 INFO L158 Benchmark]: RCFGBuilder took 458.82ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 61.0MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:58:27,756 INFO L158 Benchmark]: CodeCheck took 442.27ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 40.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:58:27,757 INFO L158 Benchmark]: Witness Printer took 7.08ms. Allocated memory is still 117.4MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:27,759 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1565. 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); [L1548] static int badStatic = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1554.19ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 79.0MB in the end (delta: 10.6MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.62ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.0MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 75.4MB in the end (delta: 576.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.82ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 61.0MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 442.27ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 40.9MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.08ms. Allocated memory is still 117.4MB. Free memory is still 40.9MB. 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 16:58:27,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:58:30,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:58:30,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 16:58:30,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:58:30,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:58:30,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:58:30,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:58:30,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:58:30,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:58:30,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:58:30,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:58:30,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:58:30,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:58:30,928 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:58:30,929 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:58:30,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:58:30,930 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:58:30,930 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:58:30,930 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:58:30,930 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:58:30,930 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 16:58:30,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:58:30,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:30,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:58:30,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:58:30,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:58:30,931 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 16:58:30,932 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:58:30,932 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 16:58:30,932 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_e91ed10b-9923-4773-a9ab-da0558fbd1f7/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 -> 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 [2024-11-13 16:58:31,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:58:31,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:58:31,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:58:31,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:58:31,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:58:31,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i Unable to find full path for "g++" [2024-11-13 16:58:33,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:58:33,869 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:58:33,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-11-13 16:58:33,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/bd365deba/dd23f68525df4becb7a77748f059a97d/FLAG06acb67c9 [2024-11-13 16:58:33,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/data/bd365deba/dd23f68525df4becb7a77748f059a97d [2024-11-13 16:58:33,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:58:33,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:58:33,930 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:33,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:58:33,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:58:33,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:33" (1/1) ... [2024-11-13 16:58:33,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61931bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:33, skipping insertion in model container [2024-11-13 16:58:33,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:58:33" (1/1) ... [2024-11-13 16:58:33,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:58:35,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:35,238 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:58:35,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:58:35,633 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:58:35,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35 WrapperNode [2024-11-13 16:58:35,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:58:35,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:35,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:58:35,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:58:35,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,722 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-13 16:58:35,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:58:35,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:58:35,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:58:35,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:58:35,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:58:35,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:58:35,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:58:35,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:58:35,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:58:35" (1/1) ... [2024-11-13 16:58:35,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:58:35,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:58:35,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:58:35,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:58:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:58:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:58:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 16:58:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:58:35,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:58:35,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:58:36,032 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:58:36,033 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:58:36,207 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 16:58:36,207 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:58:36,280 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:58:36,280 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:58:36,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:36 BoogieIcfgContainer [2024-11-13 16:58:36,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:58:36,282 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:58:36,282 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:58:36,294 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:58:36,294 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:36" (1/1) ... [2024-11-13 16:58:36,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:58:36,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:58:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 16:58:36,368 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 16:58:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 16:58:36,373 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:58:36,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:58:36,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:58:36,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:58:36,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 16:58:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:36,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:58:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:36,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:58:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:58:36,847 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 16:58:36,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 16:58:36,852 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:58:36,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:58:36 ImpRootNode [2024-11-13 16:58:36,892 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:58:36,894 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:58:36,894 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:58:36,895 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:58:36,895 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:58:36" (3/4) ... [2024-11-13 16:58:36,899 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:58:36,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:58:36,903 INFO L158 Benchmark]: Toolchain (without parser) took 2972.06ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 34.2MB in the end (delta: 22.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-13 16:58:36,903 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:36,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1704.59ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 49.8MB in the end (delta: 6.9MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 16:58:36,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.11ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:36,904 INFO L158 Benchmark]: Boogie Preprocessor took 50.13ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:58:36,905 INFO L158 Benchmark]: RCFGBuilder took 505.76ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 52.6MB in the end (delta: -7.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-13 16:58:36,905 INFO L158 Benchmark]: CodeCheck took 610.18ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 34.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:58:36,905 INFO L158 Benchmark]: Witness Printer took 6.03ms. Allocated memory is still 83.9MB. Free memory was 34.7MB in the beginning and 34.2MB in the end (delta: 418.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:58:36,911 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: 0.5s, 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, 0.0s 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1565. 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); [L1548] static int badStatic = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.35ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1704.59ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 49.8MB in the end (delta: 6.9MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.11ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.13ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 505.76ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 52.6MB in the end (delta: -7.1MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * CodeCheck took 610.18ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 34.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.03ms. Allocated memory is still 83.9MB. Free memory was 34.7MB in the beginning and 34.2MB in the end (delta: 418.5kB). 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 16:58:36,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e91ed10b-9923-4773-a9ab-da0558fbd1f7/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample