./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC --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 05ad4f177ad24416f0fe3da2d3224b4418a7b6b8b21fdad8ae3de4d714059cdf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:26:07,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:26:07,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:26:07,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:26:07,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:26:07,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:26:07,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:26:07,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:26:07,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:26:07,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:26:07,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:26:07,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:26:07,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:26:07,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:26:07,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:26:07,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:26:07,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:26:07,998 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:26:07,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:26:07,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:26:08,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:26:08,001 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:26:08,001 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:26:08,002 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:26:08,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:26:08,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:26:08,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:26:08,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:26:08,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:26:08,006 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:26:08,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:26:08,007 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:26:08,008 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_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05ad4f177ad24416f0fe3da2d3224b4418a7b6b8b21fdad8ae3de4d714059cdf [2023-11-23 20:26:08,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:26:08,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:26:08,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:26:08,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:26:08,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:26:08,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i [2023-11-23 20:26:11,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:26:11,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:26:11,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i [2023-11-23 20:26:11,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/eaf6a614a/14775f353cec44378fabe401864eb542/FLAG7416a7b02 [2023-11-23 20:26:11,962 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/eaf6a614a/14775f353cec44378fabe401864eb542 [2023-11-23 20:26:11,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:26:11,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:26:11,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:26:11,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:26:11,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:26:11,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:26:11" (1/1) ... [2023-11-23 20:26:11,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f9e9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:11, skipping insertion in model container [2023-11-23 20:26:11,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:26:11" (1/1) ... [2023-11-23 20:26:12,064 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:26:12,493 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:26:13,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:26:13,178 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:26:13,225 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:26:13,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:26:13,504 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,504 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,504 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,504 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,505 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,505 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:13,513 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:26:13,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13 WrapperNode [2023-11-23 20:26:13,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:26:13,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:26:13,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:26:13,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:26:13,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,556 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,584 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-23 20:26:13,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:26:13,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:26:13,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:26:13,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:26:13,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:26:13,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:26:13,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:26:13,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:26:13,620 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:13" (1/1) ... [2023-11-23 20:26:13,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:26:13,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:26:13,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:26:13,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:26:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:26:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:26:13,696 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:26:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:26:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:26:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:26:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:26:13,864 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:26:13,866 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:26:14,015 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:26:14,071 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:26:14,071 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:26:14,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:14 BoogieIcfgContainer [2023-11-23 20:26:14,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:26:14,074 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:26:14,075 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:26:14,086 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:26:14,086 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:14" (1/1) ... [2023-11-23 20:26:14,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:26:14,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:26:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-23 20:26:14,167 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-23 20:26:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:26:14,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:26:14,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:26:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:26:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:26:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:26:14,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 28 transitions. [2023-11-23 20:26:14,506 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-23 20:26:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:26:14,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:26:14,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:26:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:14,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:26:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:14,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:26:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:14,799 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:26:14,882 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-11-23 20:26:14,884 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated [2023-11-23 20:26:14,885 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated [2023-11-23 20:26:14,887 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated [2023-11-23 20:26:14,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:26:14 ImpRootNode [2023-11-23 20:26:14,926 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:26:14,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:26:14,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:26:14,927 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:26:14,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:14" (3/4) ... [2023-11-23 20:26:14,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:26:14,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:26:14,943 INFO L158 Benchmark]: Toolchain (without parser) took 2973.15ms. Allocated memory is still 172.0MB. Free memory was 122.0MB in the beginning and 131.9MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:14,944 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:14,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1544.15ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 108.3MB in the end (delta: 13.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-23 20:26:14,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.84ms. Allocated memory is still 172.0MB. Free memory was 108.3MB in the beginning and 105.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:26:14,948 INFO L158 Benchmark]: Boogie Preprocessor took 32.26ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:14,949 INFO L158 Benchmark]: RCFGBuilder took 455.07ms. Allocated memory is still 172.0MB. Free memory was 104.1MB in the beginning and 88.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:26:14,964 INFO L158 Benchmark]: CodeCheck took 851.42ms. Allocated memory is still 172.0MB. Free memory was 88.3MB in the beginning and 132.9MB in the end (delta: -44.6MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-11-23 20:26:14,970 INFO L158 Benchmark]: Witness Printer took 15.09ms. Allocated memory is still 172.0MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:14,979 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 21 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1576]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1589] CALL CWE191_Integer_Underflow__int_fgets_multiply_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, 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 0.34ms. Allocated memory is still 132.1MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1544.15ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 108.3MB in the end (delta: 13.3MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.84ms. Allocated memory is still 172.0MB. Free memory was 108.3MB in the beginning and 105.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.26ms. Allocated memory is still 172.0MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 455.07ms. Allocated memory is still 172.0MB. Free memory was 104.1MB in the beginning and 88.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 851.42ms. Allocated memory is still 172.0MB. Free memory was 88.3MB in the beginning and 132.9MB in the end (delta: -44.6MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 15.09ms. Allocated memory is still 172.0MB. Free memory is still 131.9MB. 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: IdentifierExpression #t~switch98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated - 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 [2023-11-23 20:26:15,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC --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 05ad4f177ad24416f0fe3da2d3224b4418a7b6b8b21fdad8ae3de4d714059cdf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:26:17,776 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:26:17,905 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:26:17,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:26:17,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:26:17,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:26:17,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:26:17,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:26:17,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:26:17,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:26:17,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:26:17,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:26:17,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:26:17,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:26:17,969 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:26:17,970 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:26:17,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:26:17,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:26:17,971 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:26:17,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:26:17,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:26:17,973 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:26:17,973 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:26:17,974 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:26:17,974 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:26:17,974 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:26:17,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:26:17,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:26:17,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:26:17,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:26:17,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:26:17,978 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:26:17,978 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:26:17,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:26:17,979 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:26:17,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:26:17,979 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_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05ad4f177ad24416f0fe3da2d3224b4418a7b6b8b21fdad8ae3de4d714059cdf [2023-11-23 20:26:18,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:26:18,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:26:18,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:26:18,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:26:18,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:26:18,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i [2023-11-23 20:26:21,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:26:21,993 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:26:21,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_15_bad.i [2023-11-23 20:26:22,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/079150e61/36652475a1db45c7aa87a9ffecbe9d1b/FLAG8a2a95dc5 [2023-11-23 20:26:22,039 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/data/079150e61/36652475a1db45c7aa87a9ffecbe9d1b [2023-11-23 20:26:22,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:26:22,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:26:22,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:26:22,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:26:22,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:26:22,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:26:22" (1/1) ... [2023-11-23 20:26:22,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d721c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:22, skipping insertion in model container [2023-11-23 20:26:22,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:26:22" (1/1) ... [2023-11-23 20:26:22,130 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:26:22,609 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:26:23,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:26:23,430 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:26:23,459 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:26:23,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:26:23,789 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,790 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,790 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,790 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,790 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,790 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:26:23,799 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:26:23,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23 WrapperNode [2023-11-23 20:26:23,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:26:23,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:26:23,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:26:23,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:26:23,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,909 INFO L138 Inliner]: procedures = 505, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-11-23 20:26:23,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:26:23,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:26:23,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:26:23,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:26:23,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:26:23,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:26:23,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:26:23,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:26:23,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:26:23" (1/1) ... [2023-11-23 20:26:23,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:26:23,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:26:23,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:26:24,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:26:24,044 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:26:24,045 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:26:24,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:26:24,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:26:24,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:26:24,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:26:24,047 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:26:24,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:26:24,261 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:26:24,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:26:24,498 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:26:24,580 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:26:24,581 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:26:24,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:24 BoogieIcfgContainer [2023-11-23 20:26:24,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:26:24,584 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:26:24,584 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:26:24,606 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:26:24,607 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:24" (1/1) ... [2023-11-23 20:26:24,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:26:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:26:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-23 20:26:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-23 20:26:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:26:24,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:26:24,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:26:24,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:26:24,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:26:24,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:26:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:26:24,886 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:26:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:26:24,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:26:24,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:26:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:26:24,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:26:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:26:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 28 transitions. [2023-11-23 20:26:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-23 20:26:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:26:25,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:26:25,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:26:25,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:26:25,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:26:25,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:26:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:25,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:26:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:25,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:26:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:26:25,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:26:25,514 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:26:25,564 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated [2023-11-23 20:26:25,565 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated [2023-11-23 20:26:25,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated [2023-11-23 20:26:25,566 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated [2023-11-23 20:26:25,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:26:25 ImpRootNode [2023-11-23 20:26:25,571 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:26:25,572 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:26:25,572 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:26:25,572 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:26:25,573 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:26:24" (3/4) ... [2023-11-23 20:26:25,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:26:25,577 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:26:25,578 INFO L158 Benchmark]: Toolchain (without parser) took 3534.13ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.7MB in the beginning and 57.3MB in the end (delta: -11.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,579 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 52.4MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:25,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1755.58ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.5MB in the beginning and 60.4MB in the end (delta: -14.9MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.18ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 57.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,581 INFO L158 Benchmark]: Boogie Preprocessor took 39.87ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,582 INFO L158 Benchmark]: RCFGBuilder took 631.95ms. Allocated memory is still 88.1MB. Free memory was 55.5MB in the beginning and 37.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,583 INFO L158 Benchmark]: CodeCheck took 987.42ms. Allocated memory is still 88.1MB. Free memory was 36.9MB in the beginning and 57.8MB in the end (delta: -20.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-23 20:26:25,583 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 57.3MB in the end (delta: 501.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:26:25,587 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 21 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1576]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] 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] [L1589] CALL CWE191_Integer_Underflow__int_fgets_multiply_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] case 7: VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.58ms. Allocated memory is still 52.4MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 34.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1755.58ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.5MB in the beginning and 60.4MB in the end (delta: -14.9MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.18ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 57.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.87ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 631.95ms. Allocated memory is still 88.1MB. Free memory was 55.5MB in the beginning and 37.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 987.42ms. Allocated memory is still 88.1MB. Free memory was 36.9MB in the beginning and 57.8MB in the end (delta: -20.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 88.1MB. Free memory was 57.8MB in the beginning and 57.3MB in the end (delta: 501.1kB). 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: IdentifierExpression #t~switch96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated - 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 [2023-11-23 20:26:25,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f26014b-168a-4a10-9472-b0ee809ca039/bin/ukojak-verify-1t5iHCbJaC/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample