./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_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_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/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_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/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_a5694334-0d08-42be-9aa8-3335ed8c72dc/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 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:43:13,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:43:13,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:43:13,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:43:13,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:43:13,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:43:13,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:43:13,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:43:13,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:43:13,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:43:13,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:43:13,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:43:13,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:43:13,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:43:13,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:43:13,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:43:13,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:43:13,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:43:13,386 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:43:13,387 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:43:13,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:43:13,391 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:43:13,392 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:43:13,392 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:43:13,392 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:43:13,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:43:13,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:43:13,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:43:13,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:43:13,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:43:13,394 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:43:13,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:43:13,394 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_a5694334-0d08-42be-9aa8-3335ed8c72dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb [2024-11-08 23:43:13,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:43:13,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:43:13,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:43:13,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:43:13,745 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:43:13,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i Unable to find full path for "g++" [2024-11-08 23:43:15,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:43:16,183 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:43:16,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i [2024-11-08 23:43:16,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/9f53eb980/bd6b7b4e009141f3bf46b937732c12da/FLAGbec3cf082 [2024-11-08 23:43:16,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/9f53eb980/bd6b7b4e009141f3bf46b937732c12da [2024-11-08 23:43:16,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:43:16,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:43:16,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:43:16,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:43:16,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:43:16,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:43:16" (1/1) ... [2024-11-08 23:43:16,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f3acbbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:16, skipping insertion in model container [2024-11-08 23:43:16,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:43:16" (1/1) ... [2024-11-08 23:43:16,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:43:17,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:43:17,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:43:17,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:43:17,986 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:43:17,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17 WrapperNode [2024-11-08 23:43:17,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:43:17,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:43:17,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:43:17,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:43:17,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,064 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-08 23:43:18,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:43:18,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:43:18,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:43:18,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:43:18,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:43:18,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:43:18,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:43:18,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:43:18,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:17" (1/1) ... [2024-11-08 23:43:18,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:43:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:43:18,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:43:18,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:43:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:43:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:43:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:43:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:43:18,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:43:18,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:43:18,331 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:43:18,333 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:43:18,476 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 23:43:18,476 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:43:18,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:43:18,527 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:43:18,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:18 BoogieIcfgContainer [2024-11-08 23:43:18,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:43:18,529 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:43:18,529 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:43:18,543 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:43:18,543 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:18" (1/1) ... [2024-11-08 23:43:18,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:43:18,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:43:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:43:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:43:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:43:18,617 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:43:18,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:43:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:18,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:43:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:18,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:43:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:18,939 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:43:18,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:43:18 ImpRootNode [2024-11-08 23:43:18,977 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:43:18,977 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:43:18,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:43:18,978 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:43:18,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:18" (3/4) ... [2024-11-08 23:43:18,981 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:43:18,983 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:43:18,983 INFO L158 Benchmark]: Toolchain (without parser) took 2557.81ms. Allocated memory is still 165.7MB. Free memory was 123.9MB in the beginning and 126.1MB in the end (delta: -2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:18,984 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 136.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:18,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1561.38ms. Allocated memory is still 165.7MB. Free memory was 123.6MB in the beginning and 101.8MB in the end (delta: 21.8MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2024-11-08 23:43:18,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.36ms. Allocated memory is still 165.7MB. Free memory was 101.8MB in the beginning and 99.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:18,986 INFO L158 Benchmark]: Boogie Preprocessor took 39.66ms. Allocated memory is still 165.7MB. Free memory was 99.1MB in the beginning and 97.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:18,987 INFO L158 Benchmark]: RCFGBuilder took 421.13ms. Allocated memory is still 165.7MB. Free memory was 97.5MB in the beginning and 82.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:43:18,987 INFO L158 Benchmark]: CodeCheck took 448.22ms. Allocated memory is still 165.7MB. Free memory was 82.3MB in the beginning and 127.0MB in the end (delta: -44.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:18,988 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 165.7MB. Free memory was 127.0MB in the beginning and 126.1MB in the end (delta: 913.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:18,991 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: 1568]: 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 1576, 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_18_bad() [L1550] int data; [L1551] data = 0 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] --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 0.35ms. Allocated memory is still 113.2MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 136.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1561.38ms. Allocated memory is still 165.7MB. Free memory was 123.6MB in the beginning and 101.8MB in the end (delta: 21.8MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.36ms. Allocated memory is still 165.7MB. Free memory was 101.8MB in the beginning and 99.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.66ms. Allocated memory is still 165.7MB. Free memory was 99.1MB in the beginning and 97.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.13ms. Allocated memory is still 165.7MB. Free memory was 97.5MB in the beginning and 82.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 448.22ms. Allocated memory is still 165.7MB. Free memory was 82.3MB in the beginning and 127.0MB in the end (delta: -44.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 165.7MB. Free memory was 127.0MB in the beginning and 126.1MB in the end (delta: 913.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:43:19,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/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_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/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_a5694334-0d08-42be-9aa8-3335ed8c72dc/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 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:43:21,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:43:21,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:43:21,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:43:21,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:43:21,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:43:21,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:43:21,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:43:21,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:43:21,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:43:21,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:43:21,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:43:21,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:43:21,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:43:21,667 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:43:21,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:43:21,668 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:43:21,668 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:43:21,668 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:43:21,669 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:43:21,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:43:21,673 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:43:21,674 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:43:21,674 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:43:21,675 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:43:21,678 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:43:21,678 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:43:21,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:43:21,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:43:21,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:43:21,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:43:21,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:43:21,680 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:43:21,680 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:43:21,681 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:43:21,681 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_a5694334-0d08-42be-9aa8-3335ed8c72dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a1ef8c03915b427b1d5c85508ae75a2e80c3069e8027c6647c4f71b54774fb [2024-11-08 23:43:22,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:43:22,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:43:22,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:43:22,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:43:22,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:43:22,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i Unable to find full path for "g++" [2024-11-08 23:43:24,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:43:24,643 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:43:24,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_bad.i [2024-11-08 23:43:24,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/5f91e6980/93832f18296444ea852c9c87bfd89a12/FLAG7259a8310 [2024-11-08 23:43:24,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/data/5f91e6980/93832f18296444ea852c9c87bfd89a12 [2024-11-08 23:43:24,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:43:24,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:43:24,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:43:24,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:43:24,705 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:43:24,706 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:43:24" (1/1) ... [2024-11-08 23:43:24,707 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e17700b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:24, skipping insertion in model container [2024-11-08 23:43:24,707 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:43:24" (1/1) ... [2024-11-08 23:43:24,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:43:26,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:43:26,034 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:43:26,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:43:26,346 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:43:26,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26 WrapperNode [2024-11-08 23:43:26,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:43:26,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:43:26,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:43:26,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:43:26,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,412 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-08 23:43:26,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:43:26,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:43:26,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:43:26,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:43:26,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:43:26,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:43:26,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:43:26,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:43:26,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:43:26" (1/1) ... [2024-11-08 23:43:26,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:43:26,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:43:26,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:43:26,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:43:26,539 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:43:26,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:43:26,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:43:26,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:43:26,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:43:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:43:26,774 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:43:26,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:43:26,956 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 23:43:26,956 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:43:27,002 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:43:27,003 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:43:27,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:27 BoogieIcfgContainer [2024-11-08 23:43:27,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:43:27,004 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:43:27,004 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:43:27,020 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:43:27,020 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:27" (1/1) ... [2024-11-08 23:43:27,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:43:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:43:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:43:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:43:27,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:43:27,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:43:27,088 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:43:27,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:43:27,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:43:27,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:43:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:27,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:43:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:27,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:43:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:43:27,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:43:27,479 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:43:27,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:43:27 ImpRootNode [2024-11-08 23:43:27,513 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:43:27,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:43:27,515 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:43:27,515 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:43:27,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:43:27" (3/4) ... [2024-11-08 23:43:27,523 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:43:27,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:43:27,525 INFO L158 Benchmark]: Toolchain (without parser) took 2827.26ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 39.5MB in the beginning and 63.2MB in the end (delta: -23.7MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-11-08 23:43:27,526 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:27,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.21ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.2MB in the beginning and 40.6MB in the end (delta: -1.4MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:27,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.70ms. Allocated memory is still 81.8MB. Free memory was 40.6MB in the beginning and 37.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:27,529 INFO L158 Benchmark]: Boogie Preprocessor took 44.89ms. Allocated memory is still 81.8MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:43:27,530 INFO L158 Benchmark]: RCFGBuilder took 544.65ms. Allocated memory is still 81.8MB. Free memory was 35.5MB in the beginning and 40.1MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 23:43:27,532 INFO L158 Benchmark]: CodeCheck took 509.01ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.7MB in the beginning and 63.7MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:27,533 INFO L158 Benchmark]: Witness Printer took 9.81ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 63.2MB in the end (delta: 495.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:43:27,541 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: 1568]: 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 1576, 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_18_bad() [L1550] int data; [L1551] data = 0 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] --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 0.49ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.21ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 39.2MB in the beginning and 40.6MB in the end (delta: -1.4MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.70ms. Allocated memory is still 81.8MB. Free memory was 40.6MB in the beginning and 37.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.89ms. Allocated memory is still 81.8MB. Free memory was 37.6MB in the beginning and 35.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.65ms. Allocated memory is still 81.8MB. Free memory was 35.5MB in the beginning and 40.1MB in the end (delta: -4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 509.01ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.7MB in the beginning and 63.7MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.81ms. Allocated memory is still 98.6MB. Free memory was 63.7MB in the beginning and 63.2MB in the end (delta: 495.6kB). 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 23:43:27,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5694334-0d08-42be-9aa8-3335ed8c72dc/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample