./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2 --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 735bec2d92b40d36888c4d6d4d2524539eca8e7121208b17b6ac057f2169b8f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:09,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:09,394 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:35:09,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:35:09,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:35:09,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:09,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:09,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:09,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:09,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:09,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:09,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:09,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:35:09,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:09,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:09,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:09,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:09,450 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:09,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:09,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:09,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:09,452 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:09,453 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:09,453 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:09,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:09,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:09,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:09,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:09,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:09,456 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:35:09,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:35:09,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:09,458 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_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 735bec2d92b40d36888c4d6d4d2524539eca8e7121208b17b6ac057f2169b8f3 [2023-11-21 18:35:09,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:09,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:09,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:09,819 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:09,819 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:09,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i [2023-11-21 18:35:13,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:13,567 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:13,568 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i [2023-11-21 18:35:13,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/84137dfb9/d532d8d6fcc142a19c8da0869fe7617a/FLAG5267f82cd [2023-11-21 18:35:13,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/84137dfb9/d532d8d6fcc142a19c8da0869fe7617a [2023-11-21 18:35:13,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:13,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:13,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:13,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:13,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:13,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:13" (1/1) ... [2023-11-21 18:35:13,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd2d327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:13, skipping insertion in model container [2023-11-21 18:35:13,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:13" (1/1) ... [2023-11-21 18:35:13,754 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:14,281 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:14,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:14,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:14,934 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:15,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:15,211 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,212 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,212 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,212 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,212 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,213 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,213 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:15,221 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:15,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15 WrapperNode [2023-11-21 18:35:15,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:15,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:15,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:15,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:15,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,309 INFO L138 Inliner]: procedures = 502, calls = 66, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2023-11-21 18:35:15,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:15,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:15,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:15,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:15,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:15,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:15,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:15,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:15,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:15,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:15,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:15,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:35:15,460 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:35:15,460 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:35:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:35:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:35:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:35:15,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:15,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:35:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:35:15,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:35:15,618 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:15,620 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:15,839 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:15,882 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:15,883 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:35:15,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:15 BoogieIcfgContainer [2023-11-21 18:35:15,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:15,886 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:15,886 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:15,898 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:15,898 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:15" (1/1) ... [2023-11-21 18:35:15,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:35:15,970 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:35:15,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:15,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:15,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:16,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:16,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:16,343 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:35:16,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:35:16 ImpRootNode [2023-11-21 18:35:16,381 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:35:16,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:35:16,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:35:16,382 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:35:16,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:15" (3/4) ... [2023-11-21 18:35:16,387 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:35:16,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:35:16,390 INFO L158 Benchmark]: Toolchain (without parser) took 2755.69ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 84.2MB in the end (delta: 2.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,390 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 102.8MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:16,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1582.56ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 69.3MB in the end (delta: 17.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.63ms. Allocated memory is still 140.5MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,392 INFO L158 Benchmark]: Boogie Preprocessor took 64.91ms. Allocated memory is still 140.5MB. Free memory was 66.2MB in the beginning and 64.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,393 INFO L158 Benchmark]: RCFGBuilder took 509.51ms. Allocated memory is still 140.5MB. Free memory was 64.6MB in the beginning and 103.0MB in the end (delta: -38.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,394 INFO L158 Benchmark]: CodeCheck took 495.27ms. Allocated memory is still 140.5MB. Free memory was 103.0MB in the beginning and 84.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:35:16,394 INFO L158 Benchmark]: Witness Printer took 6.78ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:16,398 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={29:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fgets_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_multiply_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CALL funcPtr(data) [L1577] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, 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 0.32ms. Allocated memory is still 102.8MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1582.56ms. Allocated memory is still 140.5MB. Free memory was 87.0MB in the beginning and 69.3MB in the end (delta: 17.7MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.63ms. Allocated memory is still 140.5MB. Free memory was 69.3MB in the beginning and 66.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.91ms. Allocated memory is still 140.5MB. Free memory was 66.2MB in the beginning and 64.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.51ms. Allocated memory is still 140.5MB. Free memory was 64.6MB in the beginning and 103.0MB in the end (delta: -38.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * CodeCheck took 495.27ms. Allocated memory is still 140.5MB. Free memory was 103.0MB in the beginning and 84.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.78ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:35:16,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2 --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 735bec2d92b40d36888c4d6d4d2524539eca8e7121208b17b6ac057f2169b8f3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:19,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:19,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:35:19,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:19,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:19,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:19,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:19,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:19,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:19,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:19,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:19,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:19,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:19,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:19,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:35:19,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:35:19,316 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:19,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:35:19,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:19,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:19,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:19,324 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:19,324 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:19,325 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:19,325 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:19,326 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:35:19,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:19,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:19,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:19,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:19,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:19,329 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:35:19,329 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:19,330 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:19,330 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:35:19,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:35:19,331 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_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 735bec2d92b40d36888c4d6d4d2524539eca8e7121208b17b6ac057f2169b8f3 [2023-11-21 18:35:19,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:19,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:19,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:19,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:19,882 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:19,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i [2023-11-21 18:35:23,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:23,657 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:23,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_65_bad.i [2023-11-21 18:35:23,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/5c4392278/519eff5680b3486d90aa08fe2f5d830f/FLAG812ccda4b [2023-11-21 18:35:23,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/data/5c4392278/519eff5680b3486d90aa08fe2f5d830f [2023-11-21 18:35:23,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:23,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:23,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:23,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:23,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:23,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:23" (1/1) ... [2023-11-21 18:35:23,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ff4289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:23, skipping insertion in model container [2023-11-21 18:35:23,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:23" (1/1) ... [2023-11-21 18:35:23,825 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:24,339 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:24,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:24,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:24,962 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:25,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:25,191 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,192 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,192 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,192 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,192 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,193 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,193 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:25,201 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:25,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25 WrapperNode [2023-11-21 18:35:25,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:25,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:25,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:25,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:25,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,278 INFO L138 Inliner]: procedures = 507, calls = 66, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2023-11-21 18:35:25,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:25,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:25,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:25,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:25,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:25,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:25,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:25,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:25,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:25,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:25,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:25,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:35:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:35:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:35:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:35:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:35:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:35:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:25,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:35:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:35:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:35:25,654 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:25,657 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:25,799 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:25,861 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:25,861 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:35:25,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:25 BoogieIcfgContainer [2023-11-21 18:35:25,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:25,864 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:25,865 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:25,876 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:25,876 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:25" (1/1) ... [2023-11-21 18:35:25,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:35:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:35:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:25,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:25,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:35:25,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:35:26,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:35:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:26,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:26,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:26,584 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:35:26,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-21 18:35:26,591 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:35:26,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:35:26 ImpRootNode [2023-11-21 18:35:26,621 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:35:26,621 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:35:26,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:35:26,622 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:35:26,622 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:25" (3/4) ... [2023-11-21 18:35:26,624 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:35:26,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:35:26,626 INFO L158 Benchmark]: Toolchain (without parser) took 2903.63ms. Allocated memory is still 92.3MB. Free memory was 64.5MB in the beginning and 33.4MB in the end (delta: 31.1MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,627 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 58.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:26,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1473.90ms. Allocated memory is still 92.3MB. Free memory was 64.3MB in the beginning and 45.2MB in the end (delta: 19.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.75ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 41.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,630 INFO L158 Benchmark]: Boogie Preprocessor took 39.11ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 39.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,630 INFO L158 Benchmark]: RCFGBuilder took 544.12ms. Allocated memory is still 92.3MB. Free memory was 39.8MB in the beginning and 51.2MB in the end (delta: -11.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,631 INFO L158 Benchmark]: CodeCheck took 756.98ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 33.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:35:26,653 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 92.3MB. Free memory was 33.8MB in the beginning and 33.4MB in the end (delta: 395.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:26,664 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_multiply_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CALL funcPtr(data) [L1577] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 58.7MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1473.90ms. Allocated memory is still 92.3MB. Free memory was 64.3MB in the beginning and 45.2MB in the end (delta: 19.1MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.75ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 41.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.11ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 39.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.12ms. Allocated memory is still 92.3MB. Free memory was 39.8MB in the beginning and 51.2MB in the end (delta: -11.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * CodeCheck took 756.98ms. Allocated memory is still 92.3MB. Free memory was 51.2MB in the beginning and 33.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 92.3MB. Free memory was 33.8MB in the beginning and 33.4MB in the end (delta: 395.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:35:26,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd953c1e-0943-4400-b1f4-f00d7976a7b8/bin/ukojak-verify-i0I2FZA1j2/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