./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:48:43,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:48:43,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:48:43,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:48:43,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:48:43,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:48:43,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:48:43,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:48:43,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:48:43,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:48:43,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:48:43,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:48:43,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:48:43,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:48:43,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:48:43,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:48:43,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:48:43,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:48:43,992 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:48:43,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:48:43,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:48:43,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:48:43,998 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:48:43,998 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:48:43,998 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:48:43,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:48:43,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:48:43,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:48:44,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:48:44,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:48:44,000 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:48:44,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:48:44,001 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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2024-11-08 23:48:44,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:48:44,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:48:44,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:48:44,335 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:48:44,335 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:48:44,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i Unable to find full path for "g++" [2024-11-08 23:48:46,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:48:47,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:48:47,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-08 23:48:47,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/6fb18c672/65e942fce5c94145b79858b1bda5edf3/FLAGe79c2b11d [2024-11-08 23:48:47,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/6fb18c672/65e942fce5c94145b79858b1bda5edf3 [2024-11-08 23:48:47,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:48:47,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:48:47,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:47,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:48:47,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:48:47,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:47" (1/1) ... [2024-11-08 23:48:47,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f126058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:47, skipping insertion in model container [2024-11-08 23:48:47,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:47" (1/1) ... [2024-11-08 23:48:47,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:48:48,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:48,621 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:48:48,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:49,065 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:48:49,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49 WrapperNode [2024-11-08 23:48:49,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:49,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:49,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:48:49,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:48:49,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,150 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 71 [2024-11-08 23:48:49,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:49,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:48:49,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:48:49,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:48:49,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:48:49,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:48:49,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:48:49,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:48:49,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:48:49,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:48:49,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:48:49,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:48:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:48:49,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:48:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:48:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:48:49,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:48:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:48:49,482 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:48:49,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:48:49,693 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 23:48:49,693 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:48:49,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:48:49,772 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:48:49,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:49 BoogieIcfgContainer [2024-11-08 23:48:49,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:48:49,775 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:48:49,775 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:48:49,792 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:48:49,792 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:49" (1/1) ... [2024-11-08 23:48:49,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:48:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:48:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:48:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:48:49,897 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:48:49,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:48:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:50,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:48:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:50,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:48:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:48:50,258 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:48:50,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:48:50 ImpRootNode [2024-11-08 23:48:50,308 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:48:50,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:48:50,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:48:50,310 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:48:50,312 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:49" (3/4) ... [2024-11-08 23:48:50,315 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:48:50,320 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:48:50,321 INFO L158 Benchmark]: Toolchain (without parser) took 3074.77ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 97.1MB in the beginning and 144.6MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:50,321 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 138.4MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:50,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1819.93ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 97.1MB in the beginning and 122.2MB in the end (delta: -25.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2024-11-08 23:48:50,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.52ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 119.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:48:50,327 INFO L158 Benchmark]: Boogie Preprocessor took 50.30ms. Allocated memory is still 182.5MB. Free memory was 119.0MB in the beginning and 117.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:50,328 INFO L158 Benchmark]: RCFGBuilder took 571.19ms. Allocated memory is still 182.5MB. Free memory was 117.8MB in the beginning and 101.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:48:50,329 INFO L158 Benchmark]: CodeCheck took 533.47ms. Allocated memory is still 182.5MB. Free memory was 101.3MB in the beginning and 144.8MB in the end (delta: -43.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 23:48:50,331 INFO L158 Benchmark]: Witness Printer took 10.91ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 144.6MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:48:50,338 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_52_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_52c_badSink(data) [L1582] --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 0.38ms. Allocated memory is still 138.4MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1819.93ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 97.1MB in the beginning and 122.2MB in the end (delta: -25.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.52ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 119.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.30ms. Allocated memory is still 182.5MB. Free memory was 119.0MB in the beginning and 117.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 571.19ms. Allocated memory is still 182.5MB. Free memory was 117.8MB in the beginning and 101.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 533.47ms. Allocated memory is still 182.5MB. Free memory was 101.3MB in the beginning and 144.8MB in the end (delta: -43.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 10.91ms. Allocated memory is still 182.5MB. Free memory was 144.8MB in the beginning and 144.6MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:48:50,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:48:53,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:48:53,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:48:53,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:48:53,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:48:53,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:48:53,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:48:53,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:48:53,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:48:53,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:48:53,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:48:53,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:48:53,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:48:53,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:48:53,497 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:48:53,498 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:48:53,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:48:53,499 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:48:53,504 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:48:53,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:48:53,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:48:53,506 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:48:53,506 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:48:53,506 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:48:53,507 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:48:53,507 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:53,508 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:48:53,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:48:53,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:48:53,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:48:53,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:48:53,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:48:53,511 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:48:53,512 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:53,513 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:48:53,514 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_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85414100125a1375df763d584646172151a5cac69d9244c33c07723f80f5128f [2024-11-08 23:48:53,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:48:54,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:48:54,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:48:54,026 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:48:54,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:48:54,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i Unable to find full path for "g++" [2024-11-08 23:48:56,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:48:57,042 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:48:57,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_52_bad.i [2024-11-08 23:48:57,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/f543e0182/82dfc7f9859f4733b8bc5f3b244aaa2e/FLAG0509bb48b [2024-11-08 23:48:57,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/data/f543e0182/82dfc7f9859f4733b8bc5f3b244aaa2e [2024-11-08 23:48:57,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:48:57,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:48:57,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:57,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:48:57,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:48:57,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:57" (1/1) ... [2024-11-08 23:48:57,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7f4f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:57, skipping insertion in model container [2024-11-08 23:48:57,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:48:57" (1/1) ... [2024-11-08 23:48:57,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:48:58,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:58,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:48:58,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:48:58,959 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:48:58,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58 WrapperNode [2024-11-08 23:48:58,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:48:58,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:58,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:48:58,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:48:58,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,047 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2024-11-08 23:48:59,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:48:59,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:48:59,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:48:59,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:48:59,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:48:59,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:48:59,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:48:59,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:48:59,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:48:58" (1/1) ... [2024-11-08 23:48:59,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:48:59,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:48:59,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:48:59,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:48:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:48:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:48:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:48:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:48:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:48:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:48:59,378 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:48:59,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:48:59,629 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 23:48:59,630 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:48:59,734 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:48:59,734 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:48:59,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:59 BoogieIcfgContainer [2024-11-08 23:48:59,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:48:59,736 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:48:59,736 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:48:59,749 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:48:59,750 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:59" (1/1) ... [2024-11-08 23:48:59,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:48:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:48:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:48:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:48:59,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:48:59,860 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:48:59,861 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:48:59,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:48:59,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:48:59,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:49:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:49:00,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:49:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:49:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:49:00,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:49:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:49:00,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:49:00,439 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:49:00,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:49:00 ImpRootNode [2024-11-08 23:49:00,479 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:49:00,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:49:00,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:49:00,480 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:49:00,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:48:59" (3/4) ... [2024-11-08 23:49:00,485 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:49:00,486 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:49:00,488 INFO L158 Benchmark]: Toolchain (without parser) took 3372.57ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 66.1MB in the end (delta: -12.1MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-08 23:49:00,489 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 62.9MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:49:00,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1842.93ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 43.3MB in the end (delta: 10.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 23:49:00,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.56ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 40.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:49:00,491 INFO L158 Benchmark]: Boogie Preprocessor took 47.37ms. Allocated memory is still 81.8MB. Free memory was 40.0MB in the beginning and 37.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:49:00,493 INFO L158 Benchmark]: RCFGBuilder took 637.79ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 37.9MB in the beginning and 60.4MB in the end (delta: -22.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 23:49:00,494 INFO L158 Benchmark]: CodeCheck took 743.54ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 66.7MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:49:00,495 INFO L158 Benchmark]: Witness Printer took 6.28ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:49:00,501 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: 0.7s, 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_52_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_52c_badSink(data) [L1582] --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 0.88ms. Allocated memory is still 62.9MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1842.93ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 43.3MB in the end (delta: 10.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.56ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 40.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.37ms. Allocated memory is still 81.8MB. Free memory was 40.0MB in the beginning and 37.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 637.79ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 37.9MB in the beginning and 60.4MB in the end (delta: -22.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 743.54ms. Allocated memory is still 100.7MB. Free memory was 60.4MB in the beginning and 66.7MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.28ms. Allocated memory is still 100.7MB. Free memory is still 66.1MB. 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 23:49:00,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39ff35e5-7dcf-4580-99cd-52faa9e8f3c7/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