./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:36:45,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:36:45,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:36:45,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:36:45,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:36:45,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:36:45,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:36:45,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:36:45,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:36:45,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:36:45,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:36:45,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:36:45,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:36:45,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:36:45,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:36:45,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:36:45,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:36:45,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:36:45,308 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:36:45,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:36:45,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:36:45,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:36:45,310 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:36:45,310 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:36:45,311 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:36:45,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:36:45,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:45,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:36:45,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:36:45,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:36:45,313 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:36:45,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:36:45,314 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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-08 23:36:45,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:36:45,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:36:45,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:36:45,666 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:36:45,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:36:45,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i Unable to find full path for "g++" [2024-11-08 23:36:47,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:36:48,052 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:36:48,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 23:36:48,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/20d14c574/8bdf63146deb49f79f252c3a503b9791/FLAG96206566e [2024-11-08 23:36:48,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/20d14c574/8bdf63146deb49f79f252c3a503b9791 [2024-11-08 23:36:48,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:36:48,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:36:48,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:48,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:36:48,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:36:48,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:48" (1/1) ... [2024-11-08 23:36:48,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17291cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:48, skipping insertion in model container [2024-11-08 23:36:48,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:48" (1/1) ... [2024-11-08 23:36:48,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:36:49,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:49,484 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:36:49,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:49,737 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:36:49,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49 WrapperNode [2024-11-08 23:36:49,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:49,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:49,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:36:49,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:36:49,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,801 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 23:36:49,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:49,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:36:49,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:36:49,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:36:49,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:36:49,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:36:49,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:36:49,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:36:49,831 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:49" (1/1) ... [2024-11-08 23:36:49,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:49,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:36:49,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:36:49,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:36:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:36:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:36:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:36:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:36:49,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:36:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:36:50,067 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:36:50,069 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:36:50,205 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 23:36:50,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:36:50,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:36:50,267 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:36:50,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:50 BoogieIcfgContainer [2024-11-08 23:36:50,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:36:50,268 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:36:50,268 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:36:50,290 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:36:50,290 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:50" (1/1) ... [2024-11-08 23:36:50,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:36:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:36:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:36:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:36:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:36:50,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:36:50,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:36:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:50,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:50,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:50,735 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:36:50,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:36:50 ImpRootNode [2024-11-08 23:36:50,765 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:36:50,766 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:36:50,766 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:36:50,766 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:36:50,767 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:50" (3/4) ... [2024-11-08 23:36:50,770 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:36:50,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:36:50,772 INFO L158 Benchmark]: Toolchain (without parser) took 2520.62ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 63.2MB in the end (delta: 50.6MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,773 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 80.5MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:50,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1484.99ms. Allocated memory is still 155.2MB. Free memory was 113.2MB in the beginning and 103.8MB in the end (delta: 9.4MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.81ms. Allocated memory is still 155.2MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,775 INFO L158 Benchmark]: Boogie Preprocessor took 26.15ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 99.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,776 INFO L158 Benchmark]: RCFGBuilder took 437.55ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 84.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,777 INFO L158 Benchmark]: CodeCheck took 497.35ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 63.2MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 23:36:50,777 INFO L158 Benchmark]: Witness Printer took 5.49ms. Allocated memory is still 155.2MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:50,781 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, 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 0.23ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 80.5MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1484.99ms. Allocated memory is still 155.2MB. Free memory was 113.2MB in the beginning and 103.8MB in the end (delta: 9.4MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.81ms. Allocated memory is still 155.2MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.15ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 99.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.55ms. Allocated memory is still 155.2MB. Free memory was 99.6MB in the beginning and 84.1MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 497.35ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 63.2MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.49ms. Allocated memory is still 155.2MB. Free memory is still 63.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:36:50,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:36:53,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:36:53,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:36:53,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:36:53,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:36:53,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:36:53,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:36:53,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:36:53,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:36:53,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:36:53,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:36:53,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:36:53,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:36:53,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:36:53,664 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:36:53,665 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:36:53,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:36:53,665 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:36:53,666 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:36:53,666 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:36:53,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:36:53,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:36:53,671 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:36:53,671 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:36:53,672 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:36:53,672 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:53,672 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:36:53,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:36:53,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:53,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:36:53,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:36:53,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:36:53,674 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:36:53,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:53,674 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:36:53,675 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_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-08 23:36:54,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:36:54,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:36:54,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:36:54,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:36:54,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:36:54,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i Unable to find full path for "g++" [2024-11-08 23:36:56,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:36:56,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:36:56,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 23:36:56,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/bc685e8f2/7695ce414a3c468ca68d30b816c3a434/FLAGa3d70911b [2024-11-08 23:36:56,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/data/bc685e8f2/7695ce414a3c468ca68d30b816c3a434 [2024-11-08 23:36:56,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:36:56,616 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:36:56,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:56,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:36:56,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:36:56,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:56" (1/1) ... [2024-11-08 23:36:56,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf0c907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:56, skipping insertion in model container [2024-11-08 23:36:56,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:36:56" (1/1) ... [2024-11-08 23:36:56,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:36:57,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:57,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:36:58,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:36:58,224 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:36:58,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58 WrapperNode [2024-11-08 23:36:58,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:36:58,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:58,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:36:58,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:36:58,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,283 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-08 23:36:58,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:36:58,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:36:58,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:36:58,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:36:58,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:36:58,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:36:58,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:36:58,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:36:58,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:36:58,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:36:58,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:36:58,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:36:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:36:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:36:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:36:58,581 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:36:58,583 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:36:58,746 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 23:36:58,746 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:36:58,839 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:36:58,839 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:36:58,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:58 BoogieIcfgContainer [2024-11-08 23:36:58,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:36:58,842 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:36:58,842 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:36:58,852 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:36:58,852 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:58" (1/1) ... [2024-11-08 23:36:58,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:36:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:36:58,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:36:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:36:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:36:58,922 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:36:58,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:36:58,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:36:58,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:36:58,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:36:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:59,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:59,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:36:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:36:59,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 23:36:59,392 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:36:59,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:36:59 ImpRootNode [2024-11-08 23:36:59,431 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:36:59,433 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:36:59,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:36:59,434 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:36:59,435 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:36:58" (3/4) ... [2024-11-08 23:36:59,438 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:36:59,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:36:59,441 INFO L158 Benchmark]: Toolchain (without parser) took 2824.55ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 45.6MB in the beginning and 49.6MB in the end (delta: -4.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,442 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 65.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1607.44ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 30.5MB in the end (delta: 14.8MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.64ms. Allocated memory is still 73.4MB. Free memory was 30.5MB in the beginning and 27.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,445 INFO L158 Benchmark]: Boogie Preprocessor took 51.94ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 63.3MB in the end (delta: -35.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,446 INFO L158 Benchmark]: RCFGBuilder took 504.26ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 44.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,447 INFO L158 Benchmark]: CodeCheck took 589.36ms. Allocated memory is still 92.3MB. Free memory was 44.9MB in the beginning and 50.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:36:59,448 INFO L158 Benchmark]: Witness Printer took 6.52ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 49.6MB in the end (delta: 503.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:36:59,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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); [L1549] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData=0, 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 0.47ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 65.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1607.44ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 30.5MB in the end (delta: 14.8MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.64ms. Allocated memory is still 73.4MB. Free memory was 30.5MB in the beginning and 27.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.94ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 27.5MB in the beginning and 63.3MB in the end (delta: -35.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.26ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 44.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 589.36ms. Allocated memory is still 92.3MB. Free memory was 44.9MB in the beginning and 50.1MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.52ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 49.6MB in the end (delta: 503.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:36:59,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf1eb77b-9754-49bf-824c-08a5e52a5ec2/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