./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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_e5aadfae-1eca-41c3-b512-ada5b80120a7/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:41:09,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:41:09,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:41:09,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:41:09,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:41:09,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:41:09,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:41:09,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:41:09,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:41:09,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:41:09,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:41:09,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:41:09,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:41:09,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:41:09,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:41:09,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:41:09,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:41:09,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:41:09,480 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:41:09,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:41:09,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:41:09,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:41:09,484 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:41:09,485 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:41:09,485 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:41:09,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:41:09,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:41:09,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:41:09,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:41:09,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:41:09,486 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:41:09,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:41:09,487 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_e5aadfae-1eca-41c3-b512-ada5b80120a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2024-11-09 00:41:09,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:41:09,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:41:09,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:41:09,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:41:09,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:41:09,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i Unable to find full path for "g++" [2024-11-09 00:41:11,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:41:12,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:41:12,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-11-09 00:41:12,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/aa632e1f3/fd2beb35b7354a48a782a55cadce9c90/FLAG5e3c6e5e9 [2024-11-09 00:41:12,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/aa632e1f3/fd2beb35b7354a48a782a55cadce9c90 [2024-11-09 00:41:12,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:41:12,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:41:12,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:41:12,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:41:12,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:41:12,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:12" (1/1) ... [2024-11-09 00:41:12,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae151e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:12, skipping insertion in model container [2024-11-09 00:41:12,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:12" (1/1) ... [2024-11-09 00:41:12,559 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:41:13,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:41:13,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:41:13,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:41:13,951 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:41:13,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13 WrapperNode [2024-11-09 00:41:13,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:41:13,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:41:13,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:41:13,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:41:13,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:13,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,028 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-09 00:41:14,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:41:14,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:41:14,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:41:14,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:41:14,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:41:14,066 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:41:14,066 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:41:14,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:41:14,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:13" (1/1) ... [2024-11-09 00:41:14,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:41:14,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:41:14,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:41:14,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:41:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:41:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:41:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:41:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:41:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:41:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:41:14,322 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:41:14,324 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:41:14,486 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 00:41:14,486 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:41:14,553 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:41:14,553 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:41:14,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:14 BoogieIcfgContainer [2024-11-09 00:41:14,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:41:14,554 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:41:14,554 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:41:14,565 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:41:14,566 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:14" (1/1) ... [2024-11-09 00:41:14,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:41:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:41:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-09 00:41:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-09 00:41:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:41:14,646 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:41:14,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:41:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:14,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:41:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:14,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:41:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:15,044 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:41:15,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:41:15 ImpRootNode [2024-11-09 00:41:15,091 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:41:15,091 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:41:15,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:41:15,092 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:41:15,093 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:14" (3/4) ... [2024-11-09 00:41:15,096 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:41:15,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:41:15,098 INFO L158 Benchmark]: Toolchain (without parser) took 2633.74ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 64.5MB in the end (delta: 54.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,098 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:41:15,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1486.68ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 105.5MB in the end (delta: 13.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.58ms. Allocated memory is still 151.0MB. Free memory was 105.5MB in the beginning and 102.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,102 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,103 INFO L158 Benchmark]: RCFGBuilder took 487.36ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 85.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,104 INFO L158 Benchmark]: CodeCheck took 536.54ms. Allocated memory is still 151.0MB. Free memory was 85.4MB in the beginning and 64.7MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:41:15,105 INFO L158 Benchmark]: Witness Printer took 5.59ms. Allocated memory is still 151.0MB. Free memory was 64.7MB in the beginning and 64.5MB in the end (delta: 277.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:41:15,109 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 0.35ms. Allocated memory is still 123.7MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1486.68ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 105.5MB in the end (delta: 13.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.58ms. Allocated memory is still 151.0MB. Free memory was 105.5MB in the beginning and 102.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 151.0MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.36ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 85.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 536.54ms. Allocated memory is still 151.0MB. Free memory was 85.4MB in the beginning and 64.7MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.59ms. Allocated memory is still 151.0MB. Free memory was 64.7MB in the beginning and 64.5MB in the end (delta: 277.7kB). 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 00:41:15,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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_e5aadfae-1eca-41c3-b512-ada5b80120a7/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:41:17,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:41:17,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:41:17,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:41:17,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:41:17,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:41:17,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:41:17,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:41:17,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:41:17,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:41:17,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:41:17,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:41:17,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:41:17,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:41:17,657 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:41:17,657 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:41:17,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:41:17,658 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:41:17,661 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:41:17,662 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:41:17,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:41:17,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:41:17,666 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:41:17,667 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:41:17,667 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:41:17,667 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:41:17,667 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:41:17,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:41:17,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:41:17,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:41:17,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:41:17,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:41:17,669 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:41:17,669 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:41:17,671 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:41:17,671 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_e5aadfae-1eca-41c3-b512-ada5b80120a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2024-11-09 00:41:18,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:41:18,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:41:18,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:41:18,135 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:41:18,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:41:18,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i Unable to find full path for "g++" [2024-11-09 00:41:20,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:41:20,704 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:41:20,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2024-11-09 00:41:20,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/28871d065/8afbf37954d04eb0b1ff36d72834401a/FLAG9e484402e [2024-11-09 00:41:20,748 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/data/28871d065/8afbf37954d04eb0b1ff36d72834401a [2024-11-09 00:41:20,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:41:20,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:41:20,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:41:20,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:41:20,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:41:20,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:20" (1/1) ... [2024-11-09 00:41:20,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db7abd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:20, skipping insertion in model container [2024-11-09 00:41:20,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:41:20" (1/1) ... [2024-11-09 00:41:20,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:41:22,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:41:22,218 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:41:22,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:41:22,513 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:41:22,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22 WrapperNode [2024-11-09 00:41:22,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:41:22,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:41:22,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:41:22,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:41:22,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,601 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-09 00:41:22,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:41:22,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:41:22,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:41:22,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:41:22,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:41:22,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:41:22,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:41:22,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:41:22,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:41:22" (1/1) ... [2024-11-09 00:41:22,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:41:22,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:41:22,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:41:22,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:41:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:41:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:41:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:41:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:41:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:41:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:41:23,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:41:23,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:41:23,195 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 00:41:23,195 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:41:23,254 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:41:23,254 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:41:23,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:23 BoogieIcfgContainer [2024-11-09 00:41:23,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:41:23,256 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:41:23,256 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:41:23,267 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:41:23,267 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:23" (1/1) ... [2024-11-09 00:41:23,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:41:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:41:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-09 00:41:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-09 00:41:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:41:23,343 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:41:23,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:41:23,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:41:23,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:41:23,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:41:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:23,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:41:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:23,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:41:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:41:23,730 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-09 00:41:23,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:41:23,734 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:41:23,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:41:23 ImpRootNode [2024-11-09 00:41:23,774 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:41:23,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:41:23,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:41:23,779 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:41:23,780 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:41:23" (3/4) ... [2024-11-09 00:41:23,790 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:41:23,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:41:23,793 INFO L158 Benchmark]: Toolchain (without parser) took 3040.12ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 62.5MB in the beginning and 83.9MB in the end (delta: -21.4MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,793 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:41:23,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1760.54ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 62.3MB in the beginning and 57.0MB in the end (delta: 5.3MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.86ms. Allocated memory is still 113.2MB. Free memory was 57.0MB in the beginning and 53.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,796 INFO L158 Benchmark]: Boogie Preprocessor took 59.49ms. Allocated memory is still 113.2MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,796 INFO L158 Benchmark]: RCFGBuilder took 592.23ms. Allocated memory is still 113.2MB. Free memory was 51.8MB in the beginning and 67.9MB in the end (delta: -16.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,797 INFO L158 Benchmark]: CodeCheck took 518.54ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 48.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,797 INFO L158 Benchmark]: Witness Printer took 15.34ms. Allocated memory is still 113.2MB. Free memory was 48.3MB in the beginning and 83.9MB in the end (delta: -35.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:41:23,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 0.30ms. Allocated memory is still 56.6MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1760.54ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 62.3MB in the beginning and 57.0MB in the end (delta: 5.3MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.86ms. Allocated memory is still 113.2MB. Free memory was 57.0MB in the beginning and 53.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.49ms. Allocated memory is still 113.2MB. Free memory was 53.9MB in the beginning and 51.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.23ms. Allocated memory is still 113.2MB. Free memory was 51.8MB in the beginning and 67.9MB in the end (delta: -16.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * CodeCheck took 518.54ms. Allocated memory is still 113.2MB. Free memory was 67.9MB in the beginning and 48.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 15.34ms. Allocated memory is still 113.2MB. Free memory was 48.3MB in the beginning and 83.9MB in the end (delta: -35.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:41:23,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5aadfae-1eca-41c3-b512-ada5b80120a7/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