./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b --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 1280eedf37cdcd0a55d50ddad68050c61c16bd95d7a2c9d9060d4388e6bafc10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:43:57,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:43:57,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:43:57,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:43:57,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:43:57,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:43:57,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:43:57,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:43:57,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:43:57,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:43:57,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:43:57,621 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:43:57,622 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:43:57,622 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:43:57,622 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:43:57,622 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:43:57,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:43:57,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:43:57,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:43:57,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:43:57,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:43:57,623 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:43:57,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:43:57,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b 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 -> 1280eedf37cdcd0a55d50ddad68050c61c16bd95d7a2c9d9060d4388e6bafc10 [2024-12-06 04:43:57,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:43:57,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:43:57,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:43:57,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:43:57,845 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:43:57,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i [2024-12-06 04:44:00,511 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/c81786733/185c3428275147c8a6cc9c8894c4b221/FLAGab863fade [2024-12-06 04:44:00,834 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:44:00,835 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i [2024-12-06 04:44:00,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/c81786733/185c3428275147c8a6cc9c8894c4b221/FLAGab863fade [2024-12-06 04:44:01,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/c81786733/185c3428275147c8a6cc9c8894c4b221 [2024-12-06 04:44:01,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:44:01,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:44:01,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:01,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:44:01,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:44:01,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:01,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb4fdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01, skipping insertion in model container [2024-12-06 04:44:01,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:01,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:44:01,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:01,786 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:44:01,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:01,978 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:44:01,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01 WrapperNode [2024-12-06 04:44:01,979 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:01,980 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:01,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:44:01,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:44:01,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,015 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-12-06 04:44:02,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:02,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:44:02,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:44:02,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:44:02,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,030 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,031 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,034 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:44:02,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:44:02,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:44:02,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:44:02,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:01" (1/1) ... [2024-12-06 04:44:02,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:44:02,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:44:02,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:44:02,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:44:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:44:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:44:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:44:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:44:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:44:02,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:44:02,189 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:44:02,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:44:02,275 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 04:44:02,275 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:44:02,309 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:44:02,309 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:44:02,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:02 BoogieIcfgContainer [2024-12-06 04:44:02,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:44:02,310 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:44:02,310 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:44:02,317 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:44:02,317 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:02" (1/1) ... [2024-12-06 04:44:02,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:44:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 04:44:02,360 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 04:44:02,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:44:02,363 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:02,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:44:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:02,457 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:44:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:02,538 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:44:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:02,566 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:44:02,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:44:02 ImpRootNode [2024-12-06 04:44:02,586 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:44:02,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:44:02,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:44:02,587 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:44:02,588 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:02" (3/4) ... [2024-12-06 04:44:02,590 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:44:02,591 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:44:02,592 INFO L158 Benchmark]: Toolchain (without parser) took 1516.72ms. Allocated memory is still 134.2MB. Free memory was 102.8MB in the beginning and 57.1MB in the end (delta: 45.7MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-12-06 04:44:02,592 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:02,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 903.37ms. Allocated memory is still 134.2MB. Free memory was 102.6MB in the beginning and 94.3MB in the end (delta: 8.3MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-12-06 04:44:02,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.27ms. Allocated memory is still 134.2MB. Free memory was 94.3MB in the beginning and 91.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:44:02,593 INFO L158 Benchmark]: Boogie Preprocessor took 20.73ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 90.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:02,594 INFO L158 Benchmark]: RCFGBuilder took 271.86ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 76.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:44:02,594 INFO L158 Benchmark]: CodeCheck took 276.08ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 57.7MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:44:02,595 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 134.2MB. Free memory was 57.7MB in the beginning and 57.1MB in the end (delta: 524.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:02,597 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1573, overapproximation of fgets at line 1571. 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); [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fgets_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1580] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1555] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 903.37ms. Allocated memory is still 134.2MB. Free memory was 102.6MB in the beginning and 94.3MB in the end (delta: 8.3MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.27ms. Allocated memory is still 134.2MB. Free memory was 94.3MB in the beginning and 91.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.73ms. Allocated memory is still 134.2MB. Free memory was 91.3MB in the beginning and 90.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.86ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 76.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 276.08ms. Allocated memory is still 134.2MB. Free memory was 76.2MB in the beginning and 57.7MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 134.2MB. Free memory was 57.7MB in the beginning and 57.1MB in the end (delta: 524.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:44:02,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b --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 1280eedf37cdcd0a55d50ddad68050c61c16bd95d7a2c9d9060d4388e6bafc10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:44:04,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:44:04,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 04:44:04,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:44:04,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:44:04,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:44:04,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:44:04,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:44:04,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:44:04,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:44:04,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:44:04,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:44:04,620 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:44:04,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:44:04,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:44:04,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:44:04,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b 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 -> 1280eedf37cdcd0a55d50ddad68050c61c16bd95d7a2c9d9060d4388e6bafc10 [2024-12-06 04:44:04,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:44:04,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:44:04,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:44:04,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:44:04,854 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:44:04,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i [2024-12-06 04:44:07,507 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/1f083b662/ae6726ace25641a19d9622b7d50a30c5/FLAGaffae4b6a [2024-12-06 04:44:07,796 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:44:07,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_61_bad.i [2024-12-06 04:44:07,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/1f083b662/ae6726ace25641a19d9622b7d50a30c5/FLAGaffae4b6a [2024-12-06 04:44:07,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/data/1f083b662/ae6726ace25641a19d9622b7d50a30c5 [2024-12-06 04:44:07,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:44:07,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:44:07,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:07,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:44:07,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:44:07,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:07" (1/1) ... [2024-12-06 04:44:07,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9f230d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:07, skipping insertion in model container [2024-12-06 04:44:07,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:07" (1/1) ... [2024-12-06 04:44:07,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:44:08,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:08,493 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:44:08,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:08,712 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:44:08,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08 WrapperNode [2024-12-06 04:44:08,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:08,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:08,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:44:08,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:44:08,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,759 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-06 04:44:08,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:08,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:44:08,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:44:08,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:44:08,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,777 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:44:08,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:44:08,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:44:08,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:44:08,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:08" (1/1) ... [2024-12-06 04:44:08,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:44:08,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:44:08,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:44:08,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:44:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:44:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:44:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:44:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:44:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:44:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:44:08,945 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:44:08,946 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:44:09,055 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-06 04:44:09,055 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:44:09,094 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:44:09,094 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:44:09,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:09 BoogieIcfgContainer [2024-12-06 04:44:09,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:44:09,095 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:44:09,096 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:44:09,102 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:44:09,103 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:09" (1/1) ... [2024-12-06 04:44:09,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:44:09,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 04:44:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 04:44:09,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:44:09,146 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:09,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:44:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:44:09,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:44:09,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:44:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:09,319 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:44:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:09,435 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:44:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:44:09,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:44:09,469 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:44:09,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:44:09 ImpRootNode [2024-12-06 04:44:09,490 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:44:09,491 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:44:09,491 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:44:09,491 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:44:09,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:09" (3/4) ... [2024-12-06 04:44:09,494 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:44:09,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:44:09,495 INFO L158 Benchmark]: Toolchain (without parser) took 1663.69ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 53.7MB in the end (delta: 12.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-12-06 04:44:09,495 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:09,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 880.76ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.0MB in the end (delta: 4.3MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-06 04:44:09,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:09,496 INFO L158 Benchmark]: Boogie Preprocessor took 24.12ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:09,497 INFO L158 Benchmark]: RCFGBuilder took 309.91ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:44:09,497 INFO L158 Benchmark]: CodeCheck took 394.98ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 53.8MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:09,498 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:09,500 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, 15 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1573, overapproximation of fgets at line 1571. 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); [L1562] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fgets_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1580] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_sub_61b_badSource(data) [L1555] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 880.76ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.0MB in the end (delta: 4.3MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.12ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.91ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.7MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 394.98ms. Allocated memory is still 92.3MB. Free memory was 41.7MB in the beginning and 53.8MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 53.7MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:44:09,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608e58f6-f7ee-4fe8-a436-6723601cf2f0/bin/ukojak-verify-CZk0znPC7b/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