./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:36:08,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:36:08,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:36:08,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:36:08,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:36:08,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:36:08,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:36:08,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:36:08,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:36:08,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:36:08,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:36:08,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:36:08,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:36:08,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:36:08,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:36:08,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:36:08,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:36:08,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:36:08,821 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:36:08,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:36:08,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:36:08,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:36:08,823 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:36:08,823 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:36:08,823 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:36:08,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:36:08,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:08,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:36:08,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:36:08,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:36:08,829 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:36:08,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:36:08,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-08 23:36:09,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:36:09,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:36:09,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:36:09,182 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:36:09,183 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:36:09,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-08 23:36:11,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:36:11,502 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:36:11,503 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-08 23:36:11,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/751695d85/85c29e9d525541cfbd6dcd52f01636db/FLAGc0bb5b5ce [2024-11-08 23:36:11,549 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/751695d85/85c29e9d525541cfbd6dcd52f01636db [2024-11-08 23:36:11,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:36:11,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:36:11,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:11,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:36:11,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:36:11,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:11" (1/1) ... [2024-11-08 23:36:11,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8ce673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:11, skipping insertion in model container [2024-11-08 23:36:11,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:11" (1/1) ... [2024-11-08 23:36:11,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:36:12,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:12,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:36:12,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:12,948 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:36:12,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12 WrapperNode [2024-11-08 23:36:12,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:12,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:12,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:36:12,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:36:12,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:12,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,067 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 23:36:13,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:13,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:36:13,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:36:13,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:36:13,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,115 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:36:13,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:36:13,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:36:13,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:36:13,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:12" (1/1) ... [2024-11-08 23:36:13,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:36:13,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:36:13,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:36:13,213 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:36:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:36:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:36:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:36:13,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:36:13,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:36:13,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:36:13,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:36:13,529 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 23:36:13,529 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:36:13,579 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:36:13,579 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:36:13,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:13 BoogieIcfgContainer [2024-11-08 23:36:13,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:36:13,583 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:36:13,583 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:36:13,595 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:36:13,595 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:13" (1/1) ... [2024-11-08 23:36:13,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:36:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:36:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 23:36:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 23:36:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:36:13,660 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:36:13,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:36:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:13,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:13,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:13,948 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:36:13,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:36:13 ImpRootNode [2024-11-08 23:36:13,973 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:36:13,974 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:36:13,974 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:36:13,974 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:36:13,975 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:13" (3/4) ... [2024-11-08 23:36:13,977 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:36:13,978 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:36:13,979 INFO L158 Benchmark]: Toolchain (without parser) took 2426.77ms. Allocated memory is still 180.4MB. Free memory was 109.0MB in the beginning and 109.1MB in the end (delta: -144.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:13,980 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 180.4MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:13,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1393.61ms. Allocated memory is still 180.4MB. Free memory was 108.8MB in the beginning and 92.7MB in the end (delta: 16.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-08 23:36:13,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.02ms. Allocated memory is still 180.4MB. Free memory was 92.7MB in the beginning and 146.9MB in the end (delta: -54.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-08 23:36:13,982 INFO L158 Benchmark]: Boogie Preprocessor took 60.53ms. Allocated memory is still 180.4MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:13,983 INFO L158 Benchmark]: RCFGBuilder took 453.48ms. Allocated memory is still 180.4MB. Free memory was 145.7MB in the beginning and 130.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:36:13,983 INFO L158 Benchmark]: CodeCheck took 389.85ms. Allocated memory is still 180.4MB. Free memory was 130.1MB in the beginning and 110.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:36:13,984 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 180.4MB. Free memory was 110.0MB in the beginning and 109.1MB in the end (delta: 873.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:13,987 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.26ms. Allocated memory is still 180.4MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1393.61ms. Allocated memory is still 180.4MB. Free memory was 108.8MB in the beginning and 92.7MB in the end (delta: 16.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.02ms. Allocated memory is still 180.4MB. Free memory was 92.7MB in the beginning and 146.9MB in the end (delta: -54.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.53ms. Allocated memory is still 180.4MB. Free memory was 146.9MB in the beginning and 145.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.48ms. Allocated memory is still 180.4MB. Free memory was 145.7MB in the beginning and 130.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 389.85ms. Allocated memory is still 180.4MB. Free memory was 130.1MB in the beginning and 110.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 180.4MB. Free memory was 110.0MB in the beginning and 109.1MB in the end (delta: 873.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:36:14,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:36:16,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:36:16,475 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:36:16,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:36:16,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:36:16,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:36:16,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:36:16,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:36:16,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:36:16,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:36:16,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:36:16,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:36:16,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:36:16,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:36:16,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:36:16,522 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:36:16,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:36:16,523 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:36:16,523 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:36:16,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:36:16,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:36:16,528 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:36:16,528 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:36:16,529 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:36:16,529 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:36:16,529 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:16,529 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:36:16,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:36:16,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:16,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:36:16,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:36:16,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:36:16,531 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:36:16,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:16,532 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:36:16,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-08 23:36:16,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:36:16,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:36:16,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:36:16,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:36:16,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:36:16,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-08 23:36:18,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:36:19,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:36:19,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-08 23:36:19,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/69e5e7212/0a23ad7d63344a3a87217f0b3c88dad8/FLAG1b3f24003 [2024-11-08 23:36:19,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/data/69e5e7212/0a23ad7d63344a3a87217f0b3c88dad8 [2024-11-08 23:36:19,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:36:19,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:36:19,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:19,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:36:19,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:36:19,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:19" (1/1) ... [2024-11-08 23:36:19,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7235b0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:19, skipping insertion in model container [2024-11-08 23:36:19,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:19" (1/1) ... [2024-11-08 23:36:19,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:36:20,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:20,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:36:20,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:20,871 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:36:20,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20 WrapperNode [2024-11-08 23:36:20,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:20,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:20,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:36:20,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:36:20,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,938 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-08 23:36:20,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:20,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:36:20,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:36:20,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:36:20,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:20,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:36:20,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:36:20,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:36:20,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:36:20,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:20" (1/1) ... [2024-11-08 23:36:21,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:21,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:36:21,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:36:21,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:36:21,066 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:36:21,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:36:21,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:36:21,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:36:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:36:21,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:36:21,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:36:21,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:36:21,435 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 23:36:21,435 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:36:21,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:36:21,516 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:36:21,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:21 BoogieIcfgContainer [2024-11-08 23:36:21,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:36:21,519 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:36:21,519 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:36:21,529 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:36:21,529 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:21" (1/1) ... [2024-11-08 23:36:21,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:36:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:36:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 23:36:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 23:36:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 23:36:21,616 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:36:21,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:21,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:36:21,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:36:21,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:36:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:21,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:21,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:22,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:36:22,036 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:36:22,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:36:22 ImpRootNode [2024-11-08 23:36:22,077 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:36:22,079 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:36:22,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:36:22,079 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:36:22,080 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:21" (3/4) ... [2024-11-08 23:36:22,084 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:36:22,085 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:36:22,087 INFO L158 Benchmark]: Toolchain (without parser) took 2666.81ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 45.8MB in the beginning and 78.7MB in the end (delta: -32.9MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,087 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:22,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1452.67ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 52.9MB in the end (delta: -7.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.03ms. Allocated memory is still 90.2MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,090 INFO L158 Benchmark]: Boogie Preprocessor took 52.42ms. Allocated memory is still 90.2MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,090 INFO L158 Benchmark]: RCFGBuilder took 524.97ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 53.4MB in the end (delta: -5.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,092 INFO L158 Benchmark]: CodeCheck took 558.40ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 78.7MB in the end (delta: -25.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:36:22,092 INFO L158 Benchmark]: Witness Printer took 6.35ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:22,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.18ms. Allocated memory is still 73.4MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1452.67ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.5MB in the beginning and 52.9MB in the end (delta: -7.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.03ms. Allocated memory is still 90.2MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.42ms. Allocated memory is still 90.2MB. Free memory was 49.5MB in the beginning and 47.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.97ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 53.4MB in the end (delta: -5.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * CodeCheck took 558.40ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 78.7MB in the end (delta: -25.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.35ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 78.7MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:36:22,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c417bf79-5551-440e-9514-10d5e3d89af0/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample