./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:04:13,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:04:13,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:04:13,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:04:13,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:04:13,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:04:13,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:04:13,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:04:13,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:04:13,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:04:13,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:04:13,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:04:13,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:04:13,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:04:13,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:04:13,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:04:13,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:04:13,207 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:04:13,207 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:04:13,208 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:04:13,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:04:13,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:04:13,214 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:04:13,216 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:04:13,217 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:04:13,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:04:13,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:13,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:04:13,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:04:13,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:04:13,221 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:04:13,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:04:13,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2024-11-08 23:04:13,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:04:13,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:04:13,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:04:13,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:04:13,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:04:13,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i Unable to find full path for "g++" [2024-11-08 23:04:15,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:04:16,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:04:16,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2024-11-08 23:04:16,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/9417ec907/f98c13dc64294e708c9ce5205a8883d4/FLAG184824c79 [2024-11-08 23:04:16,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/9417ec907/f98c13dc64294e708c9ce5205a8883d4 [2024-11-08 23:04:16,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:04:16,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:04:16,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:16,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:04:16,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:04:16,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:16" (1/1) ... [2024-11-08 23:04:16,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8bf174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:16, skipping insertion in model container [2024-11-08 23:04:16,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:16" (1/1) ... [2024-11-08 23:04:16,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:04:18,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:18,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:04:18,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:18,442 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:04:18,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18 WrapperNode [2024-11-08 23:04:18,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:18,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:18,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:04:18,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:04:18,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,514 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-08 23:04:18,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:18,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:04:18,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:04:18,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:04:18,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:04:18,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:04:18,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:04:18,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:04:18,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:18" (1/1) ... [2024-11-08 23:04:18,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:18,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:04:18,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:04:18,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:04:18,639 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:04:18,640 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:04:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:04:18,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:04:18,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:04:18,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:04:18,863 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:04:18,867 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:04:19,065 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 23:04:19,066 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:04:19,154 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:04:19,154 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:04:19,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:19 BoogieIcfgContainer [2024-11-08 23:04:19,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:04:19,160 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:04:19,160 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:04:19,177 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:04:19,177 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:19" (1/1) ... [2024-11-08 23:04:19,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:04:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:04:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:04:19,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:04:19,300 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:19,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:04:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:19,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:19,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:19,799 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:04:19,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:04:19 ImpRootNode [2024-11-08 23:04:19,847 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:04:19,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:04:19,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:04:19,849 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:04:19,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:19" (3/4) ... [2024-11-08 23:04:19,856 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:04:19,858 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:04:19,859 INFO L158 Benchmark]: Toolchain (without parser) took 3343.94ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 112.4MB in the beginning and 119.7MB in the end (delta: -7.3MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,860 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 122.4MB in the end (delta: 161.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:19,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1927.96ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 112.0MB in the beginning and 161.7MB in the end (delta: -49.7MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.03ms. Allocated memory is still 201.3MB. Free memory was 161.7MB in the beginning and 158.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,863 INFO L158 Benchmark]: Boogie Preprocessor took 31.07ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,864 INFO L158 Benchmark]: RCFGBuilder took 611.82ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 141.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,865 INFO L158 Benchmark]: CodeCheck took 687.55ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 120.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:04:19,866 INFO L158 Benchmark]: Witness Printer took 9.27ms. Allocated memory is still 201.3MB. Free memory was 120.8MB in the beginning and 119.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:19,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 153.1MB. Free memory was 122.5MB in the beginning and 122.4MB in the end (delta: 161.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1927.96ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 112.0MB in the beginning and 161.7MB in the end (delta: -49.7MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.03ms. Allocated memory is still 201.3MB. Free memory was 161.7MB in the beginning and 158.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.07ms. Allocated memory is still 201.3MB. Free memory was 158.5MB in the beginning and 156.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.82ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 141.7MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 687.55ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 120.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 9.27ms. Allocated memory is still 201.3MB. Free memory was 120.8MB in the beginning and 119.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:04:19,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:04:22,856 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:04:22,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:04:23,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:04:23,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:04:23,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:04:23,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:04:23,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:04:23,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:04:23,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:04:23,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:04:23,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:04:23,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:04:23,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:04:23,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:04:23,038 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:04:23,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:04:23,039 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:04:23,040 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:04:23,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:04:23,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:04:23,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:04:23,050 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:04:23,051 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:04:23,051 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:04:23,051 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:04:23,052 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:04:23,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:04:23,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:23,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:04:23,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:04:23,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:04:23,057 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:04:23,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:04:23,058 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:04:23,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2024-11-08 23:04:23,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:04:23,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:04:23,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:04:23,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:04:23,612 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:04:23,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i Unable to find full path for "g++" [2024-11-08 23:04:25,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:04:26,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:04:26,450 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2024-11-08 23:04:26,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/de76371a3/a543aecefaa245d1a5a5f17f05292eb0/FLAG2e2e3d83a [2024-11-08 23:04:26,588 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/data/de76371a3/a543aecefaa245d1a5a5f17f05292eb0 [2024-11-08 23:04:26,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:04:26,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:04:26,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:26,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:04:26,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:04:26,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:26" (1/1) ... [2024-11-08 23:04:26,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33604a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:26, skipping insertion in model container [2024-11-08 23:04:26,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:04:26" (1/1) ... [2024-11-08 23:04:26,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:04:28,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:28,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:04:28,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:04:28,429 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:04:28,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28 WrapperNode [2024-11-08 23:04:28,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:04:28,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:28,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:04:28,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:04:28,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,503 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-11-08 23:04:28,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:04:28,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:04:28,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:04:28,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:04:28,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:04:28,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:04:28,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:04:28,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:04:28,555 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:04:28" (1/1) ... [2024-11-08 23:04:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:04:28,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:04:28,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:04:28,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:04:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:04:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:04:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:04:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:04:28,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:04:28,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:04:28,792 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:04:28,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:04:28,928 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 23:04:28,929 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:04:29,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:04:29,009 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:04:29,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:29 BoogieIcfgContainer [2024-11-08 23:04:29,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:04:29,011 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:04:29,011 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:04:29,021 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:04:29,021 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:29" (1/1) ... [2024-11-08 23:04:29,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:04:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:04:29,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:04:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:04:29,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:04:29,108 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:04:29,108 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:04:29,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:04:29,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:04:29,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:04:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:29,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:29,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:04:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:04:29,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:04:29,585 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:04:29,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:04:29 ImpRootNode [2024-11-08 23:04:29,622 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:04:29,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:04:29,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:04:29,626 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:04:29,627 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:04:29" (3/4) ... [2024-11-08 23:04:29,630 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:04:29,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:04:29,632 INFO L158 Benchmark]: Toolchain (without parser) took 3038.76ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 39.1MB in the beginning and 38.8MB in the end (delta: 283.4kB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,633 INFO L158 Benchmark]: CDTParser took 3.50ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:29,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1834.01ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 39.0MB in the beginning and 55.1MB in the end (delta: -16.1MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.27ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,637 INFO L158 Benchmark]: Boogie Preprocessor took 47.91ms. Allocated memory is still 88.1MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,637 INFO L158 Benchmark]: RCFGBuilder took 456.78ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 58.2MB in the end (delta: -8.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,639 INFO L158 Benchmark]: CodeCheck took 611.71ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 39.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:04:29,640 INFO L158 Benchmark]: Witness Printer took 7.13ms. Allocated memory is still 88.1MB. Free memory was 39.3MB in the beginning and 38.8MB in the end (delta: 482.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:04:29,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.50ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 42.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1834.01ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 39.0MB in the beginning and 55.1MB in the end (delta: -16.1MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.27ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.91ms. Allocated memory is still 88.1MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.78ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 58.2MB in the end (delta: -8.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 611.71ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 39.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.13ms. Allocated memory is still 88.1MB. Free memory was 39.3MB in the beginning and 38.8MB in the end (delta: 482.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:04:29,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52b3ac33-1f13-4852-9dbf-7fa805912168/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample