./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9 --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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:19:37,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:19:37,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 04:19:37,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:19:37,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:19:37,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:19:37,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:19:37,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:19:37,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:19:37,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:19:37,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:19:37,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:19:37,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:19:37,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:19:37,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:19:37,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:19:37,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:19:37,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:19:37,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:19:37,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:19:37,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:19:37,961 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:19:37,961 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:19:37,962 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:19:37,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:19:37,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:19:37,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:19:37,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:19:37,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:19:37,964 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:19:37,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:19:37,965 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:19:37,965 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_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2023-12-03 04:19:38,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:19:38,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:19:38,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:19:38,187 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:19:38,187 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:19:38,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2023-12-03 04:19:40,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:19:41,218 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:19:41,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2023-12-03 04:19:41,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/21a4bdb14/78d2a9d420724570bb83d5f4dc17ff36/FLAG5202ba4d1 [2023-12-03 04:19:41,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/21a4bdb14/78d2a9d420724570bb83d5f4dc17ff36 [2023-12-03 04:19:41,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:19:41,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:19:41,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:19:41,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:19:41,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:19:41,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:19:41" (1/1) ... [2023-12-03 04:19:41,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16abfe39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:41, skipping insertion in model container [2023-12-03 04:19:41,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:19:41" (1/1) ... [2023-12-03 04:19:41,343 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:19:42,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:19:42,108 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:19:42,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:19:42,371 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:42,371 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:42,372 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:42,372 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:42,372 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:42,378 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:19:42,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42 WrapperNode [2023-12-03 04:19:42,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:19:42,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:19:42,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:19:42,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:19:42,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,411 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,437 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-12-03 04:19:42,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:19:42,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:19:42,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:19:42,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:19:42,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:19:42,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:19:42,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:19:42,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:19:42,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:19:42,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:19:42,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:19:42,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:19:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 04:19:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 04:19:42,530 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 04:19:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:19:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 04:19:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:19:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:19:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:19:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:19:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 04:19:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:19:42,680 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:19:42,682 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:19:42,798 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:19:42,841 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:19:42,841 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 04:19:42,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:42 BoogieIcfgContainer [2023-12-03 04:19:42,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:19:42,844 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:19:42,844 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:19:42,851 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:19:42,852 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:42" (1/1) ... [2023-12-03 04:19:42,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:19:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:19:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 04:19:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 04:19:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:19:42,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:19:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:19:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:43,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:19:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:43,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:19:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:43,165 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 04:19:43,186 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 04:19:43,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:19:43 ImpRootNode [2023-12-03 04:19:43,191 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:19:43,192 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:19:43,192 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:19:43,192 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:19:43,193 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:42" (3/4) ... [2023-12-03 04:19:43,195 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:19:43,196 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:19:43,197 INFO L158 Benchmark]: Toolchain (without parser) took 1935.60ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 103.5MB in the beginning and 99.7MB in the end (delta: 3.7MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-12-03 04:19:43,197 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:19:43,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1116.47ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 103.0MB in the beginning and 138.5MB in the end (delta: -35.6MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-12-03 04:19:43,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 197.1MB. Free memory was 138.5MB in the beginning and 135.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 04:19:43,198 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 197.1MB. Free memory was 135.4MB in the beginning and 134.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:19:43,199 INFO L158 Benchmark]: RCFGBuilder took 378.08ms. Allocated memory is still 197.1MB. Free memory was 134.4MB in the beginning and 118.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:19:43,200 INFO L158 Benchmark]: CodeCheck took 347.89ms. Allocated memory is still 197.1MB. Free memory was 118.6MB in the beginning and 99.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 04:19:43,200 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 197.1MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:19:43,203 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576. 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); [L1576] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=28, argc=28, argv={29:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1551] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, 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 96.5MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1116.47ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 103.0MB in the beginning and 138.5MB in the end (delta: -35.6MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 197.1MB. Free memory was 138.5MB in the beginning and 135.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 197.1MB. Free memory was 135.4MB in the beginning and 134.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 378.08ms. Allocated memory is still 197.1MB. Free memory was 134.4MB in the beginning and 118.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 347.89ms. Allocated memory is still 197.1MB. Free memory was 118.6MB in the beginning and 99.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 197.1MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet103 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 04:19:43,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/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_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9 --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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:19:45,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:19:45,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 04:19:45,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:19:45,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:19:45,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:19:45,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:19:45,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:19:45,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:19:45,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:19:45,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:19:45,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:19:45,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:19:45,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:19:45,243 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:19:45,244 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:19:45,244 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:19:45,245 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:19:45,245 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:19:45,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:19:45,246 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:19:45,247 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:19:45,248 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:19:45,248 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:19:45,248 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:19:45,249 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:19:45,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:19:45,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:19:45,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:19:45,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:19:45,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:19:45,251 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:19:45,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:19:45,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:19:45,252 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:19:45,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:19:45,253 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2023-12-03 04:19:45,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:19:45,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:19:45,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:19:45,566 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:19:45,566 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:19:45,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2023-12-03 04:19:48,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:19:48,659 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:19:48,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2023-12-03 04:19:48,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/3ea6b6e54/b714334a3204406fa735ce37034a8ded/FLAG4b1a6add8 [2023-12-03 04:19:48,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/data/3ea6b6e54/b714334a3204406fa735ce37034a8ded [2023-12-03 04:19:48,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:19:48,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:19:48,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:19:48,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:19:48,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:19:48,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:19:48" (1/1) ... [2023-12-03 04:19:48,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed076c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:48, skipping insertion in model container [2023-12-03 04:19:48,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:19:48" (1/1) ... [2023-12-03 04:19:48,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:19:49,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:19:49,583 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:19:49,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:19:49,827 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:49,827 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:49,827 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:49,827 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:49,827 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:19:49,835 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:19:49,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49 WrapperNode [2023-12-03 04:19:49,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:19:49,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:19:49,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:19:49,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:19:49,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,897 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-12-03 04:19:49,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:19:49,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:19:49,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:19:49,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:19:49,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:19:49,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:19:49,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:19:49,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:19:49,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:19:49" (1/1) ... [2023-12-03 04:19:49,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:19:49,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:19:49,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:19:49,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:19:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 04:19:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 04:19:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:19:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:19:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 04:19:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 04:19:50,189 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:19:50,191 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:19:50,325 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:19:50,380 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:19:50,380 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 04:19:50,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:50 BoogieIcfgContainer [2023-12-03 04:19:50,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:19:50,383 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:19:50,383 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:19:50,392 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:19:50,393 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:50" (1/1) ... [2023-12-03 04:19:50,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:19:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:19:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 04:19:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 04:19:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:19:50,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:19:50,461 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:19:50,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:19:50,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:19:50,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:19:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:50,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:19:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:50,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:19:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:19:50,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:19:50,938 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 04:19:50,960 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 04:19:50,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:19:50 ImpRootNode [2023-12-03 04:19:50,966 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:19:50,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:19:50,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:19:50,967 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:19:50,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:19:50" (3/4) ... [2023-12-03 04:19:50,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:19:50,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:19:50,972 INFO L158 Benchmark]: Toolchain (without parser) took 2267.97ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 78.2MB in the end (delta: 20.0MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,972 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:19:50,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1130.82ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 65.6MB in the end (delta: 32.6MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.12ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 62.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,974 INFO L158 Benchmark]: Boogie Preprocessor took 38.02ms. Allocated memory is still 125.8MB. Free memory was 62.2MB in the beginning and 60.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,975 INFO L158 Benchmark]: RCFGBuilder took 444.54ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 96.3MB in the end (delta: -36.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,975 INFO L158 Benchmark]: CodeCheck took 584.07ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 78.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:19:50,976 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 125.8MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 115.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:19:50,979 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576. 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); [L1576] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1551] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, 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 0.13ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1130.82ms. Allocated memory is still 125.8MB. Free memory was 98.2MB in the beginning and 65.6MB in the end (delta: 32.6MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.12ms. Allocated memory is still 125.8MB. Free memory was 65.6MB in the beginning and 62.2MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.02ms. Allocated memory is still 125.8MB. Free memory was 62.2MB in the beginning and 60.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.54ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 96.3MB in the end (delta: -36.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * CodeCheck took 584.07ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 78.3MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 125.8MB. Free memory was 78.3MB in the beginning and 78.2MB in the end (delta: 115.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 04:19:50,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83f614b-da79-42d5-af55-2e11d6e28f30/bin/ukojak-verify-Qdu7aM0XO9/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