./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm --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 2cfcdf9a23c3aff1299e58ae710f9b2e69c51ca6676ee742443a89d14241bc80 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:51:05,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:51:05,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:51:05,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:51:05,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:51:05,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:51:05,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:51:05,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:51:05,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:51:05,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:51:05,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:51:05,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:51:05,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:51:05,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:51:05,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:51:05,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:51:05,932 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:51:05,932 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:51:05,932 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:51:05,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:51:05,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:51:05,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm 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 -> 2cfcdf9a23c3aff1299e58ae710f9b2e69c51ca6676ee742443a89d14241bc80 [2024-11-13 21:51:06,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:51:06,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:51:06,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:51:06,218 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:51:06,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:51:06,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i Unable to find full path for "g++" [2024-11-13 21:51:08,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:51:08,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:51:08,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i [2024-11-13 21:51:08,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/fb050633a/3e96016fc88547dda68283076a0c671d/FLAG21210ba29 [2024-11-13 21:51:08,775 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/fb050633a/3e96016fc88547dda68283076a0c671d [2024-11-13 21:51:08,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:51:08,779 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:51:08,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:51:08,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:51:08,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:51:08,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:51:08" (1/1) ... [2024-11-13 21:51:08,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5182f35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:08, skipping insertion in model container [2024-11-13 21:51:08,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:51:08" (1/1) ... [2024-11-13 21:51:08,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:51:09,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:51:09,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:51:10,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:51:10,234 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:51:10,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10 WrapperNode [2024-11-13 21:51:10,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:51:10,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:51:10,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:51:10,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:51:10,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,282 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-13 21:51:10,282 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:51:10,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:51:10,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:51:10,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:51:10,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:51:10,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:51:10,306 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:51:10,306 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:51:10,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:51:10,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:51:10,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:51:10,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:51:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:51:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:51:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:51:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:51:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:51:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:51:10,536 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:51:10,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:51:10,641 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 21:51:10,641 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:51:10,681 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:51:10,681 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:51:10,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:10 BoogieIcfgContainer [2024-11-13 21:51:10,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:51:10,683 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:51:10,683 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:51:10,692 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:51:10,693 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:10" (1/1) ... [2024-11-13 21:51:10,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:51:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:51:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:51:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:51:10,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:51:10,767 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:51:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:51:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:10,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:51:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:11,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:51:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:11,100 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:51:11,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:51:11 ImpRootNode [2024-11-13 21:51:11,124 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:51:11,125 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:51:11,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:51:11,125 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:51:11,126 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:10" (3/4) ... [2024-11-13 21:51:11,128 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:51:11,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:51:11,130 INFO L158 Benchmark]: Toolchain (without parser) took 2351.43ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 44.3MB in the end (delta: 45.1MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-13 21:51:11,131 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:11,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.01ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.4MB in the end (delta: 7.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 21:51:11,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.67ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 79.0MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:51:11,132 INFO L158 Benchmark]: Boogie Preprocessor took 21.68ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:11,132 INFO L158 Benchmark]: RCFGBuilder took 376.44ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 63.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:51:11,133 INFO L158 Benchmark]: CodeCheck took 441.74ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 44.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:51:11,133 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 117.4MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:11,136 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [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] [L1567] data - 1 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 0.43ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.01ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.4MB in the end (delta: 7.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.67ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 79.0MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.68ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 78.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.44ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 63.4MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 441.74ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 44.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 117.4MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:51:11,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm --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 2cfcdf9a23c3aff1299e58ae710f9b2e69c51ca6676ee742443a89d14241bc80 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:51:13,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:51:13,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:51:13,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:51:13,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:51:13,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:51:13,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:51:13,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:51:13,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:51:13,964 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:51:13,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:51:13,965 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:51:13,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:51:13,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:51:13,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:51:13,967 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:51:13,967 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:51:13,967 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:51:13,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm 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 -> 2cfcdf9a23c3aff1299e58ae710f9b2e69c51ca6676ee742443a89d14241bc80 [2024-11-13 21:51:14,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:51:14,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:51:14,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:51:14,309 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:51:14,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:51:14,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i Unable to find full path for "g++" [2024-11-13 21:51:16,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:51:16,696 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:51:16,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_31_bad.i [2024-11-13 21:51:16,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/e79b60bd8/916d8defb0e741c9b8b5db1401bb8cec/FLAGd3cebd1b3 [2024-11-13 21:51:16,854 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/data/e79b60bd8/916d8defb0e741c9b8b5db1401bb8cec [2024-11-13 21:51:16,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:51:16,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:51:16,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:51:16,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:51:16,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:51:16,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:51:16" (1/1) ... [2024-11-13 21:51:16,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e13e796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:16, skipping insertion in model container [2024-11-13 21:51:16,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:51:16" (1/1) ... [2024-11-13 21:51:16,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:51:17,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:51:17,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:51:17,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:51:18,167 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:51:18,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18 WrapperNode [2024-11-13 21:51:18,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:51:18,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:51:18,170 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:51:18,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:51:18,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,222 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-11-13 21:51:18,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:51:18,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:51:18,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:51:18,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:51:18,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:51:18,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:51:18,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:51:18,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:51:18,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:51:18,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:51:18,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:51:18,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:51:18,316 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:51:18,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:51:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:51:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:51:18,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:51:18,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:51:18,458 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:51:18,460 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:51:18,641 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 21:51:18,641 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:51:18,710 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:51:18,710 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:51:18,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:18 BoogieIcfgContainer [2024-11-13 21:51:18,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:51:18,711 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:51:18,712 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:51:18,722 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:51:18,722 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:18" (1/1) ... [2024-11-13 21:51:18,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:51:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:51:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:51:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:51:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:51:18,795 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:51:18,796 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:51:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:51:18,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:51:18,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:51:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:19,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:51:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:19,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:51:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:51:19,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:51:19,246 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:51:19,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:51:19 ImpRootNode [2024-11-13 21:51:19,284 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:51:19,285 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:51:19,285 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:51:19,286 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:51:19,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:51:18" (3/4) ... [2024-11-13 21:51:19,290 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:51:19,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:51:19,295 INFO L158 Benchmark]: Toolchain (without parser) took 2434.22ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 77.4MB in the end (delta: 12.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-13 21:51:19,295 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 117.4MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:19,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1308.49ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 67.7MB in the end (delta: 21.8MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 21:51:19,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.26ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 65.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:19,296 INFO L158 Benchmark]: Boogie Preprocessor took 26.43ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:19,296 INFO L158 Benchmark]: RCFGBuilder took 460.44ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 46.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:51:19,297 INFO L158 Benchmark]: CodeCheck took 572.22ms. Allocated memory is still 117.4MB. Free memory was 46.2MB in the beginning and 77.5MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:19,297 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 77.4MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:51:19,302 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [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] [L1567] data - 1 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 0.50ms. Allocated memory is still 117.4MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1308.49ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 67.7MB in the end (delta: 21.8MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.26ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 65.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.43ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 63.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.44ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 46.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 572.22ms. Allocated memory is still 117.4MB. Free memory was 46.2MB in the beginning and 77.5MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 77.4MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 21:51:19,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b12dcf25-7f07-4dd1-bf30-a0bb9e245d45/bin/ukojak-verify-EEHR8qb7sm/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