./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL --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 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:03:33,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:03:33,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:03:33,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:03:33,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:03:34,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:03:34,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:03:34,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:03:34,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:03:34,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:03:34,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:03:34,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:03:34,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:03:34,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:03:34,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:03:34,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:03:34,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:03:34,049 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:03:34,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:03:34,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:03:34,050 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:03:34,051 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:03:34,052 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:03:34,052 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:03:34,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:03:34,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:34,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:03:34,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:03:34,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:03:34,057 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:03:34,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:03:34,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:03:34,059 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_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2023-11-19 04:03:34,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:03:34,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:03:34,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:03:34,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:03:34,475 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:03:34,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-19 04:03:37,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:03:38,073 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:03:38,074 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-19 04:03:38,111 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/2ae88d544/99c854ec23814e049d5f0e3da5fe1e36/FLAGbb0411c1d [2023-11-19 04:03:38,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/2ae88d544/99c854ec23814e049d5f0e3da5fe1e36 [2023-11-19 04:03:38,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:03:38,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:03:38,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:38,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:03:38,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:03:38,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:38" (1/1) ... [2023-11-19 04:03:38,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82d0442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:38, skipping insertion in model container [2023-11-19 04:03:38,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:38" (1/1) ... [2023-11-19 04:03:38,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:03:38,692 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:39,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:39,514 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:03:39,550 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:39,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:39,804 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,804 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,805 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,805 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,805 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,805 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:39,845 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:03:39,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39 WrapperNode [2023-11-19 04:03:39,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:39,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:39,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:03:39,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:03:39,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:39,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,012 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-19 04:03:40,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:40,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:03:40,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:03:40,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:03:40,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:03:40,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:03:40,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:03:40,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:03:40,090 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:39" (1/1) ... [2023-11-19 04:03:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:40,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:03:40,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:03:40,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:03:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:03:40,178 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:03:40,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:03:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:03:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:03:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:03:40,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:03:40,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:03:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:03:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:03:40,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:03:40,406 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:03:40,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:03:40,641 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:03:40,703 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:03:40,703 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:03:40,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:40 BoogieIcfgContainer [2023-11-19 04:03:40,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:03:40,709 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:03:40,710 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:03:40,721 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:03:40,721 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:40" (1/1) ... [2023-11-19 04:03:40,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:03:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:40,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 04:03:40,805 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 04:03:40,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:03:40,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:40,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:03:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:41,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:41,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:41,317 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:03:41,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:03:41 ImpRootNode [2023-11-19 04:03:41,366 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:03:41,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:03:41,369 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:03:41,369 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:03:41,370 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:40" (3/4) ... [2023-11-19 04:03:41,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:03:41,376 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:03:41,378 INFO L158 Benchmark]: Toolchain (without parser) took 3235.86ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 78.1MB in the end (delta: 28.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,379 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:41,380 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1715.66ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 116.5MB in the end (delta: -9.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 152.82ms. Allocated memory is still 148.9MB. Free memory was 116.5MB in the beginning and 113.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,382 INFO L158 Benchmark]: Boogie Preprocessor took 72.29ms. Allocated memory is still 148.9MB. Free memory was 113.7MB in the beginning and 112.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,383 INFO L158 Benchmark]: RCFGBuilder took 620.44ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 97.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,385 INFO L158 Benchmark]: CodeCheck took 657.07ms. Allocated memory is still 148.9MB. Free memory was 97.0MB in the beginning and 78.8MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:03:41,386 INFO L158 Benchmark]: Witness Printer took 7.65ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 78.1MB in the end (delta: 701.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:41,397 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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); [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=27, argc=27, argv={28:26}, argv={28:26}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] EXPR data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570-L1580] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1554] 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] [L1556] 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 0.35ms. Allocated memory is still 102.8MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1715.66ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 116.5MB in the end (delta: -9.8MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 152.82ms. Allocated memory is still 148.9MB. Free memory was 116.5MB in the beginning and 113.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.29ms. Allocated memory is still 148.9MB. Free memory was 113.7MB in the beginning and 112.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.44ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 97.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 657.07ms. Allocated memory is still 148.9MB. Free memory was 97.0MB in the beginning and 78.8MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.65ms. Allocated memory is still 148.9MB. Free memory was 78.8MB in the beginning and 78.1MB in the end (delta: 701.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:03:41,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/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_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL --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 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:03:44,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:03:44,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 04:03:44,602 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:03:44,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:03:44,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:03:44,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:03:44,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:03:44,607 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:03:44,608 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:03:44,609 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:03:44,609 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:03:44,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:03:44,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:03:44,611 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:03:44,612 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:03:44,613 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:03:44,614 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:03:44,614 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:03:44,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:03:44,616 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:03:44,617 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:03:44,617 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:03:44,618 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:03:44,619 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:44,619 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:03:44,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:03:44,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:44,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:03:44,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:03:44,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:03:44,623 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:03:44,624 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:44,625 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:03:44,625 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:03:44,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:03:44,626 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_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2023-11-19 04:03:45,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:03:45,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:03:45,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:03:45,070 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:03:45,071 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:03:45,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-19 04:03:48,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:03:49,047 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:03:49,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-19 04:03:49,082 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/be59dc0e8/c65685f1681a484b9681c43a4558d73a/FLAG830048635 [2023-11-19 04:03:49,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/data/be59dc0e8/c65685f1681a484b9681c43a4558d73a [2023-11-19 04:03:49,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:03:49,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:03:49,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:49,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:03:49,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:03:49,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:49" (1/1) ... [2023-11-19 04:03:49,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b99a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:49, skipping insertion in model container [2023-11-19 04:03:49,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:49" (1/1) ... [2023-11-19 04:03:49,207 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:03:49,689 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:50,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:50,296 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:03:50,324 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:50,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:50,706 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,706 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,706 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,706 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,707 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,707 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:50,716 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:03:50,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50 WrapperNode [2023-11-19 04:03:50,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:50,718 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:50,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:03:50,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:03:50,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,788 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-19 04:03:50,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:50,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:03:50,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:03:50,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:03:50,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:03:50,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:03:50,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:03:50,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:03:50,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:50" (1/1) ... [2023-11-19 04:03:50,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:03:50,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:03:50,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:03:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:03:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:03:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:03:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:03:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:03:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:03:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:03:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:03:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:03:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:03:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 04:03:51,140 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:03:51,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:03:51,303 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:03:51,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:03:51,351 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:03:51,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:51 BoogieIcfgContainer [2023-11-19 04:03:51,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:03:51,357 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:03:51,357 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:03:51,369 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:03:51,369 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:51" (1/1) ... [2023-11-19 04:03:51,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:03:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 04:03:51,440 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 04:03:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:03:51,445 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:51,446 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:03:51,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:03:51,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:03:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:51,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:51,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:52,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:03:52,067 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:03:52,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:03:52 ImpRootNode [2023-11-19 04:03:52,119 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:03:52,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:03:52,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:03:52,123 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:03:52,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:51" (3/4) ... [2023-11-19 04:03:52,126 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:03:52,128 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:03:52,129 INFO L158 Benchmark]: Toolchain (without parser) took 3023.30ms. Allocated memory is still 100.7MB. Free memory was 72.8MB in the beginning and 63.1MB in the end (delta: 9.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,130 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:52,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1609.49ms. Allocated memory is still 100.7MB. Free memory was 72.8MB in the beginning and 71.0MB in the end (delta: 1.8MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.73ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 67.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,133 INFO L158 Benchmark]: Boogie Preprocessor took 41.96ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,134 INFO L158 Benchmark]: RCFGBuilder took 524.22ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 48.5MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,135 INFO L158 Benchmark]: CodeCheck took 762.14ms. Allocated memory is still 100.7MB. Free memory was 48.5MB in the beginning and 63.7MB in the end (delta: -15.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:52,135 INFO L158 Benchmark]: Witness Printer took 5.95ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.1MB in the end (delta: 613.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:52,147 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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); [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] EXPR data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570-L1580] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1554] 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] [L1556] 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 0.36ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1609.49ms. Allocated memory is still 100.7MB. Free memory was 72.8MB in the beginning and 71.0MB in the end (delta: 1.8MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.73ms. Allocated memory is still 100.7MB. Free memory was 71.0MB in the beginning and 67.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.96ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.22ms. Allocated memory is still 100.7MB. Free memory was 65.8MB in the beginning and 48.5MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 762.14ms. Allocated memory is still 100.7MB. Free memory was 48.5MB in the beginning and 63.7MB in the end (delta: -15.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.95ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.1MB in the end (delta: 613.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:03:52,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a911e51-e64d-4294-8c06-46fa4fe7a56f/bin/ukojak-verify-G8NBE6pJGL/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