./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_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_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/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_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/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_32e2601f-4086-4b27-8793-2e5026fb8c74/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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:04:43,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:04:43,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:04:43,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:04:43,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:04:43,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:04:43,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:04:43,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:04:43,863 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:04:43,863 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:04:43,865 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:04:43,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:04:43,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:04:43,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:04:43,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:04:43,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:04:43,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:04:43,867 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:04:43,867 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:04:43,868 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:04:43,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:04:43,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:04:43,868 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:04:43,868 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:04:43,869 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:04:43,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:04:43,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:04:43,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:04:43,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:04:43,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:04:43,869 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:04:43,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:04:43,870 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_32e2601f-4086-4b27-8793-2e5026fb8c74/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 -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-13 21:04:44,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:04:44,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:04:44,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:04:44,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:04:44,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:04:44,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i Unable to find full path for "g++" [2024-11-13 21:04:46,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:04:47,472 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:04:47,473 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-13 21:04:47,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/7d2c13617/bcce2ee1fc2544d5977f014a76f9f22a/FLAG756dd8989 [2024-11-13 21:04:47,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/7d2c13617/bcce2ee1fc2544d5977f014a76f9f22a [2024-11-13 21:04:47,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:04:47,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:04:47,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:04:47,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:04:47,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:04:47,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:47" (1/1) ... [2024-11-13 21:04:47,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66249944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:47, skipping insertion in model container [2024-11-13 21:04:47,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:47" (1/1) ... [2024-11-13 21:04:48,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:04:49,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:04:49,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:04:49,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:04:49,777 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:04:49,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49 WrapperNode [2024-11-13 21:04:49,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:04:49,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:04:49,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:04:49,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:04:49,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,875 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-13 21:04:49,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:04:49,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:04:49,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:04:49,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:04:49,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:04:49,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:04:49,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:04:49,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:04:49,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:49" (1/1) ... [2024-11-13 21:04:49,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:04:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:04:49,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:04:49,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:04:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:04:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:04:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:04:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:04:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:04:50,207 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:04:50,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:04:50,432 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 21:04:50,433 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:04:50,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:04:50,517 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:04:50,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:50 BoogieIcfgContainer [2024-11-13 21:04:50,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:04:50,520 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:04:50,520 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:04:50,534 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:04:50,534 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:50" (1/1) ... [2024-11-13 21:04:50,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:04:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:04:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:04:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:04:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:04:50,641 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:04:50,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:04:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:04:50,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:04:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:04:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:04:51,126 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:04:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:04:51,191 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:04:51,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:04:51 ImpRootNode [2024-11-13 21:04:51,242 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:04:51,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:04:51,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:04:51,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:04:51,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:04:50" (3/4) ... [2024-11-13 21:04:51,249 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:04:51,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:04:51,252 INFO L158 Benchmark]: Toolchain (without parser) took 3294.72ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 65.5MB in the end (delta: 36.6MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-13 21:04:51,254 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:51,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1819.92ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 41.1MB in the end (delta: 61.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-13 21:04:51,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.06ms. Allocated memory is still 142.6MB. Free memory was 41.1MB in the beginning and 38.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:51,256 INFO L158 Benchmark]: Boogie Preprocessor took 29.11ms. Allocated memory is still 142.6MB. Free memory was 38.3MB in the beginning and 37.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:51,257 INFO L158 Benchmark]: RCFGBuilder took 612.07ms. Allocated memory is still 142.6MB. Free memory was 37.3MB in the beginning and 89.6MB in the end (delta: -52.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2024-11-13 21:04:51,257 INFO L158 Benchmark]: CodeCheck took 722.01ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 65.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:04:51,257 INFO L158 Benchmark]: Witness Printer took 8.10ms. Allocated memory is still 142.6MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:04:51,264 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: 0.6s, 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, 0.1s 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={17068:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --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 0.57ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1819.92ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 41.1MB in the end (delta: 61.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.06ms. Allocated memory is still 142.6MB. Free memory was 41.1MB in the beginning and 38.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.11ms. Allocated memory is still 142.6MB. Free memory was 38.3MB in the beginning and 37.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 612.07ms. Allocated memory is still 142.6MB. Free memory was 37.3MB in the beginning and 89.6MB in the end (delta: -52.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * CodeCheck took 722.01ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 65.5MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.10ms. Allocated memory is still 142.6MB. Free memory is still 65.5MB. 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 21:04:51,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/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_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/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_32e2601f-4086-4b27-8793-2e5026fb8c74/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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:04:54,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:04:55,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:04:55,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:04:55,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:04:55,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:04:55,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:04:55,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:04:55,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:04:55,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:04:55,220 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:04:55,221 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:04:55,221 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:04:55,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:04:55,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:04:55,224 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:04:55,224 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:04:55,225 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:04:55,226 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:04:55,227 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:04:55,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:04:55,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:04:55,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:04:55,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:04:55,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:04:55,228 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:04:55,228 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:04:55,228 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:04:55,228 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_32e2601f-4086-4b27-8793-2e5026fb8c74/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 -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-13 21:04:55,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:04:55,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:04:55,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:04:55,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:04:55,691 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:04:55,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i Unable to find full path for "g++" [2024-11-13 21:04:58,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:04:58,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:04:58,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-13 21:04:59,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/adacb478e/bfba4d74c4d74a39aa3ef38a4afa9b0e/FLAG7e7641b9e [2024-11-13 21:04:59,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/data/adacb478e/bfba4d74c4d74a39aa3ef38a4afa9b0e [2024-11-13 21:04:59,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:04:59,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:04:59,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:04:59,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:04:59,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:04:59,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:59" (1/1) ... [2024-11-13 21:04:59,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c48f27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:04:59, skipping insertion in model container [2024-11-13 21:04:59,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:04:59" (1/1) ... [2024-11-13 21:04:59,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:05:00,692 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 21:05:00,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:00,732 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:05:00,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:05:01,175 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:05:01,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01 WrapperNode [2024-11-13 21:05:01,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:05:01,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:01,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:05:01,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:05:01,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,260 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-13 21:05:01,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:05:01,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:05:01,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:05:01,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:05:01,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:05:01,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:05:01,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:05:01,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:05:01,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:05:01,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:05:01,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:05:01,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:05:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:05:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:05:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:05:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:05:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:05:01,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:05:01,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:05:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 21:05:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:05:01,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 21:05:01,638 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:05:01,640 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:05:01,885 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-13 21:05:01,885 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:05:01,964 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:05:01,964 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:05:01,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:01 BoogieIcfgContainer [2024-11-13 21:05:01,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:05:01,966 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:05:01,966 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:05:01,980 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:05:01,980 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:01" (1/1) ... [2024-11-13 21:05:01,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:05:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:05:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:05:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:05:02,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:05:02,067 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:05:02,068 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:05:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:05:02,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:05:02,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:05:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:02,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:02,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:05:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:05:02,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-13 21:05:02,937 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:05:02,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:05:02 ImpRootNode [2024-11-13 21:05:02,989 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:05:02,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:05:02,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:05:02,991 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:05:02,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:01" (3/4) ... [2024-11-13 21:05:02,995 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:05:02,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:05:02,998 INFO L158 Benchmark]: Toolchain (without parser) took 3960.15ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 29.2MB in the end (delta: 28.2MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-13 21:05:02,998 INFO L158 Benchmark]: CDTParser took 3.81ms. Allocated memory is still 83.9MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:02,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2136.74ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 50.7MB in the end (delta: 6.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 21:05:02,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.09ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 47.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:02,999 INFO L158 Benchmark]: Boogie Preprocessor took 58.98ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:03,000 INFO L158 Benchmark]: RCFGBuilder took 644.21ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 52.2MB in the end (delta: -6.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-13 21:05:03,000 INFO L158 Benchmark]: CodeCheck took 1022.74ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 29.2MB in the end (delta: 22.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:05:03,000 INFO L158 Benchmark]: Witness Printer took 5.99ms. Allocated memory is still 83.9MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:05:03,007 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: 0.9s, 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, 0.1s 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --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 3.81ms. Allocated memory is still 83.9MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2136.74ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 50.7MB in the end (delta: 6.7MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.09ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 47.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.98ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 644.21ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 52.2MB in the end (delta: -6.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * CodeCheck took 1022.74ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 29.2MB in the end (delta: 22.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.99ms. Allocated memory is still 83.9MB. Free memory is still 29.2MB. 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 21:05:03,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e2601f-4086-4b27-8793-2e5026fb8c74/bin/ukojak-verify-EEHR8qb7sm/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