./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:26:50,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:26:50,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 21:26:50,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:26:50,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:26:50,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:26:50,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:26:50,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:26:50,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:26:50,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 21:26:50,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:26:50,657 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:26:50,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:26:50,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:26:50,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:26:50,658 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:26:50,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:26:50,658 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_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b 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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-12-05 21:26:50,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:26:50,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:26:50,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:26:50,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:26:50,903 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:26:50,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-12-05 21:26:53,515 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/5607692e7/c3fdd5ec8e4e4c09b4799c2131a2ec38/FLAG30f540168 [2024-12-05 21:26:53,823 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:26:53,824 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-12-05 21:26:53,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/5607692e7/c3fdd5ec8e4e4c09b4799c2131a2ec38/FLAG30f540168 [2024-12-05 21:26:54,082 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/5607692e7/c3fdd5ec8e4e4c09b4799c2131a2ec38 [2024-12-05 21:26:54,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:26:54,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:26:54,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:26:54,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:26:54,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:26:54,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:26:54" (1/1) ... [2024-12-05 21:26:54,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cff31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:54, skipping insertion in model container [2024-12-05 21:26:54,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:26:54" (1/1) ... [2024-12-05 21:26:54,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:26:54,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:26:54,855 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:26:54,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:26:55,051 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:26:55,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55 WrapperNode [2024-12-05 21:26:55,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:26:55,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:26:55,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:26:55,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:26:55,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,091 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-05 21:26:55,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:26:55,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:26:55,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:26:55,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:26:55,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,107 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:26:55,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:26:55,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:26:55,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:26:55,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:26:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:26:55,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:26:55,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:26:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 21:26:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 21:26:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:26:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:26:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:26:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:26:55,277 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:26:55,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:26:55,377 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 21:26:55,377 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:26:55,409 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:26:55,409 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:26:55,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:26:55 BoogieIcfgContainer [2024-12-05 21:26:55,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:26:55,411 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:26:55,411 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:26:55,420 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:26:55,420 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:26:55" (1/1) ... [2024-12-05 21:26:55,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:26:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:26:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 21:26:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 21:26:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:26:55,483 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:26:55,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:26:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:26:55,602 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:26:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:26:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:26:55,687 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:26:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:26:55,717 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 21:26:55,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:26:55 ImpRootNode [2024-12-05 21:26:55,740 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:26:55,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:26:55,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:26:55,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:26:55,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:26:55" (3/4) ... [2024-12-05 21:26:55,743 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:26:55,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:26:55,744 INFO L158 Benchmark]: Toolchain (without parser) took 1659.69ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 45.4MB in the end (delta: 45.0MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-12-05 21:26:55,745 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:26:55,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 967.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 82.5MB in the end (delta: 7.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-12-05 21:26:55,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.54ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:26:55,746 INFO L158 Benchmark]: Boogie Preprocessor took 22.58ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:26:55,746 INFO L158 Benchmark]: RCFGBuilder took 294.48ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 63.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:26:55,747 INFO L158 Benchmark]: CodeCheck took 329.34ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 45.4MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:26:55,747 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 117.4MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:26:55,749 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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, ConComCheckerStatistics: 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 1568, overapproximation of fgets at line 1566. 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; [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] 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 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 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 967.20ms. Allocated memory is still 117.4MB. Free memory was 90.2MB in the beginning and 82.5MB in the end (delta: 7.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.54ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 79.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.58ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.48ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 63.9MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 329.34ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 45.4MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 117.4MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:26:55,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/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_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:26:57,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:26:57,826 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 21:26:57,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:26:57,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:26:57,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:26:57,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:26:57,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:26:57,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:26:57,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:26:57,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:26:57,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:26:57,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:26:57,856 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 21:26:57,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:26:57,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:26:57,856 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 21:26:57,857 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:26:57,857 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 21:26:57,857 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_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b 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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-12-05 21:26:58,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:26:58,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:26:58,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:26:58,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:26:58,129 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:26:58,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-12-05 21:27:00,885 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/2b606ff16/dc1b2976883041c18c1a9b6907ae460c/FLAGc04025dc6 [2024-12-05 21:27:01,172 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:27:01,173 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-12-05 21:27:01,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/2b606ff16/dc1b2976883041c18c1a9b6907ae460c/FLAGc04025dc6 [2024-12-05 21:27:01,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/data/2b606ff16/dc1b2976883041c18c1a9b6907ae460c [2024-12-05 21:27:01,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:27:01,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:27:01,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:27:01,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:27:01,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:27:01,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:27:01" (1/1) ... [2024-12-05 21:27:01,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4579732d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:01, skipping insertion in model container [2024-12-05 21:27:01,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:27:01" (1/1) ... [2024-12-05 21:27:01,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:27:02,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:27:02,014 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:27:02,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:27:02,222 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:27:02,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02 WrapperNode [2024-12-05 21:27:02,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:27:02,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:27:02,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:27:02,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:27:02,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,266 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-12-05 21:27:02,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:27:02,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:27:02,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:27:02,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:27:02,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,285 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,294 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:27:02,295 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:27:02,295 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:27:02,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:27:02,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:27:02,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:27:02,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:27:02,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:27:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 21:27:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 21:27:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 21:27:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:27:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:27:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:27:02,476 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:27:02,478 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:27:02,596 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 21:27:02,597 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:27:02,634 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:27:02,634 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 21:27:02,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:27:02 BoogieIcfgContainer [2024-12-05 21:27:02,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:27:02,635 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:27:02,635 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:27:02,643 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:27:02,643 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:27:02" (1/1) ... [2024-12-05 21:27:02,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:27:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:27:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 21:27:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 21:27:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:27:02,691 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:27:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:27:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:27:02,694 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:27:02,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 21:27:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:27:02,847 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:27:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:27:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:27:02,950 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:27:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:27:02,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 21:27:02,980 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 21:27:03,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:27:03 ImpRootNode [2024-12-05 21:27:03,003 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:27:03,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:27:03,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:27:03,004 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:27:03,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:27:02" (3/4) ... [2024-12-05 21:27:03,006 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:27:03,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:27:03,008 INFO L158 Benchmark]: Toolchain (without parser) took 1791.75ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 53.5MB in the end (delta: 13.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-05 21:27:03,008 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:27:03,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1005.01ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 63.1MB in the end (delta: 3.6MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-12-05 21:27:03,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 60.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:27:03,009 INFO L158 Benchmark]: Boogie Preprocessor took 27.17ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:27:03,010 INFO L158 Benchmark]: RCFGBuilder took 339.79ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 41.9MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:27:03,010 INFO L158 Benchmark]: CodeCheck took 367.61ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 53.5MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:27:03,010 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:27:03,012 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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, ConComCheckerStatistics: 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 1568, overapproximation of fgets at line 1566. 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; [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] 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 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 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1005.01ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 63.1MB in the end (delta: 3.6MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 60.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.17ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 58.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.79ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 41.9MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 367.61ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 53.5MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:27:03,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f0ecf4-e019-48ac-8873-e55675bc15cf/bin/ukojak-verify-CZk0znPC7b/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