./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_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_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/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_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/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_e694bc0a-2426-431b-a227-1f8c5e781e99/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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:11:05,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:11:05,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:11:05,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:11:05,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:11:05,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:11:05,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:11:05,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:11:05,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:11:05,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:11:05,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:11:05,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:11:05,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:11:05,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:11:05,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:11:05,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:11:05,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:11:05,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:11:05,835 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:11:05,835 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:11:05,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:11:05,836 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:11:05,837 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:11:05,837 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:11:05,837 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:11:05,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:11:05,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:11:05,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:11:05,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:11:05,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:11:05,839 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:11:05,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:11:05,840 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_e694bc0a-2426-431b-a227-1f8c5e781e99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2024-11-09 00:11:06,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:11:06,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:11:06,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:11:06,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:11:06,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:11:06,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i Unable to find full path for "g++" [2024-11-09 00:11:08,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:11:08,594 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:11:08,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-11-09 00:11:08,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/152b00de4/2723033d4219463cb4666b3ba321062e/FLAG5f160f904 [2024-11-09 00:11:08,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/152b00de4/2723033d4219463cb4666b3ba321062e [2024-11-09 00:11:08,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:11:08,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:11:08,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:11:08,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:11:08,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:11:08,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:08" (1/1) ... [2024-11-09 00:11:08,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50167b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:08, skipping insertion in model container [2024-11-09 00:11:08,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:08" (1/1) ... [2024-11-09 00:11:08,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:11:09,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:11:09,930 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:11:10,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:11:10,245 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:11:10,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10 WrapperNode [2024-11-09 00:11:10,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:11:10,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:11:10,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:11:10,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:11:10,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,327 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-09 00:11:10,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:11:10,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:11:10,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:11:10,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:11:10,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:11:10,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:11:10,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:11:10,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:11:10,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:11:10,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:11:10,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:11:10,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:11:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:11:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:11:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:11:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:11:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:11:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:11:10,588 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:11:10,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:11:10,735 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 00:11:10,735 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:11:10,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:11:10,790 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:11:10,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:10 BoogieIcfgContainer [2024-11-09 00:11:10,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:11:10,792 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:11:10,792 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:11:10,800 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:11:10,800 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:10" (1/1) ... [2024-11-09 00:11:10,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:11:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:11:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:11:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:11:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:11:10,877 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:11:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:11:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:11,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:11:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:11,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:11:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:11,237 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:11:11,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:11:11 ImpRootNode [2024-11-09 00:11:11,270 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:11:11,270 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:11:11,271 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:11:11,271 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:11:11,271 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:10" (3/4) ... [2024-11-09 00:11:11,277 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:11:11,278 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:11:11,280 INFO L158 Benchmark]: Toolchain (without parser) took 2537.08ms. Allocated memory is still 151.0MB. Free memory was 113.3MB in the beginning and 95.7MB in the end (delta: 17.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-09 00:11:11,280 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 68.3MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:11:11,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1502.90ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 83.1MB in the end (delta: 29.8MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-09 00:11:11,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.27ms. Allocated memory is still 151.0MB. Free memory was 83.1MB in the beginning and 80.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:11:11,282 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 151.0MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:11:11,284 INFO L158 Benchmark]: RCFGBuilder took 437.87ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 63.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:11:11,286 INFO L158 Benchmark]: CodeCheck took 478.19ms. Allocated memory is still 151.0MB. Free memory was 63.6MB in the beginning and 95.7MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:11:11,286 INFO L158 Benchmark]: Witness Printer took 7.50ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:11:11,291 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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); [L1573] 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) [L1573] 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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, 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 0.21ms. Allocated memory is still 98.6MB. Free memory was 68.3MB in the beginning and 68.3MB in the end (delta: 26.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1502.90ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 83.1MB in the end (delta: 29.8MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.27ms. Allocated memory is still 151.0MB. Free memory was 83.1MB in the beginning and 80.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 151.0MB. Free memory was 80.4MB in the beginning and 79.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.87ms. Allocated memory is still 151.0MB. Free memory was 79.0MB in the beginning and 63.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 478.19ms. Allocated memory is still 151.0MB. Free memory was 63.6MB in the beginning and 95.7MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.50ms. Allocated memory is still 151.0MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:11:11,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/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_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/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_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/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_e694bc0a-2426-431b-a227-1f8c5e781e99/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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:11:13,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:11:13,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:11:13,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:11:13,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:11:13,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:11:13,850 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:11:13,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:11:13,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:11:13,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:11:13,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:11:13,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:11:13,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:11:13,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:11:13,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:11:13,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:11:13,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:11:13,857 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:11:13,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:11:13,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:11:13,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:11:13,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:11:13,864 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:11:13,864 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:11:13,865 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:11:13,865 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:11:13,865 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:11:13,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:11:13,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:11:13,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:11:13,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:11:13,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:11:13,867 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:11:13,867 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:11:13,867 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:11:13,869 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_e694bc0a-2426-431b-a227-1f8c5e781e99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2024-11-09 00:11:14,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:11:14,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:11:14,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:11:14,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:11:14,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:11:14,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i Unable to find full path for "g++" [2024-11-09 00:11:16,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:11:16,784 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:11:16,785 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-11-09 00:11:16,819 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/ef43047b8/14802107948342d6bca03709f3c92d4e/FLAGd0faa6fdf [2024-11-09 00:11:16,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/data/ef43047b8/14802107948342d6bca03709f3c92d4e [2024-11-09 00:11:16,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:11:16,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:11:16,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:11:16,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:11:16,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:11:16,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:16" (1/1) ... [2024-11-09 00:11:16,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af27000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:16, skipping insertion in model container [2024-11-09 00:11:16,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:11:16" (1/1) ... [2024-11-09 00:11:16,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:11:17,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:11:17,998 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:11:18,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:11:18,288 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:11:18,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18 WrapperNode [2024-11-09 00:11:18,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:11:18,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:11:18,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:11:18,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:11:18,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,360 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-09 00:11:18,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:11:18,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:11:18,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:11:18,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:11:18,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:11:18,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:11:18,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:11:18,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:11:18,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:11:18,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:11:18,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:11:18,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:11:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:11:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:11:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:11:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:11:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:11:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:11:18,653 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:11:18,655 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:11:18,813 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-09 00:11:18,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:11:18,895 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:11:18,895 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:11:18,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:18 BoogieIcfgContainer [2024-11-09 00:11:18,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:11:18,896 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:11:18,897 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:11:18,907 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:11:18,907 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:18" (1/1) ... [2024-11-09 00:11:18,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:11:18,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:11:18,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:11:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:11:18,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:11:18,994 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:11:18,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:11:18,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:11:18,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:11:19,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:11:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:19,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:11:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:19,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:11:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:11:19,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:11:19,461 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:11:19,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:11:19 ImpRootNode [2024-11-09 00:11:19,496 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:11:19,497 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:11:19,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:11:19,498 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:11:19,499 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:11:18" (3/4) ... [2024-11-09 00:11:19,502 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:11:19,503 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:11:19,505 INFO L158 Benchmark]: Toolchain (without parser) took 2659.90ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 33.4MB in the beginning and 41.0MB in the end (delta: -7.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,505 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:11:19,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1441.77ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 33.3MB in the beginning and 56.5MB in the end (delta: -23.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.62ms. Allocated memory is still 94.4MB. Free memory was 56.5MB in the beginning and 53.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,508 INFO L158 Benchmark]: Boogie Preprocessor took 49.96ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,510 INFO L158 Benchmark]: RCFGBuilder took 484.03ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 60.9MB in the end (delta: -9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,511 INFO L158 Benchmark]: CodeCheck took 599.51ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 41.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:11:19,511 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 94.4MB. Free memory was 41.5MB in the beginning and 41.0MB in the end (delta: 522.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:11:19,516 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_predec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData=0, 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 0.32ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 41.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1441.77ms. Allocated memory was 65.0MB in the beginning and 94.4MB in the end (delta: 29.4MB). Free memory was 33.3MB in the beginning and 56.5MB in the end (delta: -23.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.62ms. Allocated memory is still 94.4MB. Free memory was 56.5MB in the beginning and 53.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.96ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 51.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.03ms. Allocated memory is still 94.4MB. Free memory was 51.2MB in the beginning and 60.9MB in the end (delta: -9.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 599.51ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 41.5MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 94.4MB. Free memory was 41.5MB in the beginning and 41.0MB in the end (delta: 522.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:11:19,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e694bc0a-2426-431b-a227-1f8c5e781e99/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample