./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/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_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:20:43,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:20:43,629 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:20:43,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:20:43,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:20:43,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:20:43,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:20:43,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:20:43,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:20:43,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:20:43,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:20:43,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:20:43,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:20:43,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:20:43,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:20:43,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:20:43,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:20:43,673 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:20:43,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:20:43,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:20:43,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:20:43,676 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:20:43,677 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:20:43,677 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:20:43,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:20:43,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:43,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:20:43,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:20:43,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:20:43,681 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:20:43,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:20:43,682 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:20:43,682 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_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2023-11-23 20:20:43,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:20:44,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:20:44,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:20:44,034 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:20:44,035 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:20:44,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-23 20:20:47,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:20:47,665 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:20:47,667 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-23 20:20:47,704 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/cbbe1db77/1b778f43f3514d8d96d53d77af79f5a9/FLAG535f839d5 [2023-11-23 20:20:47,727 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/cbbe1db77/1b778f43f3514d8d96d53d77af79f5a9 [2023-11-23 20:20:47,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:20:47,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:20:47,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:47,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:20:47,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:20:47,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:47" (1/1) ... [2023-11-23 20:20:47,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2170096f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:47, skipping insertion in model container [2023-11-23 20:20:47,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:47" (1/1) ... [2023-11-23 20:20:47,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:20:48,332 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:48,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:49,000 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:20:49,046 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:49,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:49,343 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,343 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,344 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,344 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,344 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,344 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:49,352 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:20:49,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49 WrapperNode [2023-11-23 20:20:49,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:49,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:49,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:20:49,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:20:49,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,465 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-23 20:20:49,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:49,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:20:49,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:20:49,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:20:49,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:20:49,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:20:49,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:20:49,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:20:49,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:49" (1/1) ... [2023-11-23 20:20:49,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:49,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:20:49,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:20:49,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:20:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:20:49,594 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:20:49,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:20:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:20:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:20:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:20:49,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:20:49,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:20:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:20:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:20:49,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:20:49,822 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:20:49,825 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:20:49,990 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:20:50,028 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:20:50,028 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:20:50,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:50 BoogieIcfgContainer [2023-11-23 20:20:50,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:20:50,031 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:20:50,031 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:20:50,043 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:20:50,044 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:50" (1/1) ... [2023-11-23 20:20:50,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:20:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:20:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:20:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:20:50,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:20:50,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:20:50,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:20:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:50,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:20:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:50,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:20:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:20:50,584 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:20:50,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:20:50 ImpRootNode [2023-11-23 20:20:50,617 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:20:50,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:20:50,620 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:20:50,620 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:20:50,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:20:50" (3/4) ... [2023-11-23 20:20:50,623 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:20:50,624 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:20:50,626 INFO L158 Benchmark]: Toolchain (without parser) took 2888.16ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 105.5MB in the end (delta: 2.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-11-23 20:20:50,626 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:50,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1614.75ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 82.7MB in the end (delta: 24.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-23 20:20:50,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.00ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 79.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:20:50,630 INFO L158 Benchmark]: Boogie Preprocessor took 31.97ms. Allocated memory is still 155.2MB. Free memory was 79.8MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:50,631 INFO L158 Benchmark]: RCFGBuilder took 530.07ms. Allocated memory is still 155.2MB. Free memory was 77.7MB in the beginning and 63.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:20:50,632 INFO L158 Benchmark]: CodeCheck took 586.00ms. Allocated memory is still 155.2MB. Free memory was 63.0MB in the beginning and 106.6MB in the end (delta: -43.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:20:50,633 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:20:50,642 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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)=12, argc=12, argv={27:28}, 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 0.26ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 73.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1614.75ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 82.7MB in the end (delta: 24.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.00ms. Allocated memory is still 155.2MB. Free memory was 82.7MB in the beginning and 79.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.97ms. Allocated memory is still 155.2MB. Free memory was 79.8MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 530.07ms. Allocated memory is still 155.2MB. Free memory was 77.7MB in the beginning and 63.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 586.00ms. Allocated memory is still 155.2MB. Free memory was 63.0MB in the beginning and 106.6MB in the end (delta: -43.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 155.2MB. Free memory was 106.6MB in the beginning and 105.5MB in the end (delta: 1.1MB). 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 [2023-11-23 20:20:50,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/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_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:20:53,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:20:53,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:20:53,533 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:20:53,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:20:53,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:20:53,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:20:53,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:20:53,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:20:53,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:20:53,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:20:53,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:20:53,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:20:53,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:20:53,542 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:20:53,542 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:20:53,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:20:53,544 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:20:53,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:20:53,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:20:53,546 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:20:53,547 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:20:53,548 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:20:53,548 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:20:53,549 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:20:53,549 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:20:53,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:20:53,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:53,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:20:53,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:20:53,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:20:53,553 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:20:53,554 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:20:53,554 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:20:53,555 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:20:53,555 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:20:53,556 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_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2023-11-23 20:20:54,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:20:54,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:20:54,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:20:54,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:20:54,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:20:54,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-23 20:20:57,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:20:57,810 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:20:57,813 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2023-11-23 20:20:57,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/aa6c2609a/3d3cff859e63467b82f588e6d33e1583/FLAG0e999e243 [2023-11-23 20:20:57,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/data/aa6c2609a/3d3cff859e63467b82f588e6d33e1583 [2023-11-23 20:20:57,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:20:57,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:20:57,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:57,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:20:57,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:20:57,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:57" (1/1) ... [2023-11-23 20:20:57,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c89027d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:57, skipping insertion in model container [2023-11-23 20:20:57,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:20:57" (1/1) ... [2023-11-23 20:20:57,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:20:58,389 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:59,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:59,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:20:59,237 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:20:59,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:20:59,521 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,522 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,522 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,522 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,522 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,523 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:20:59,531 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:20:59,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59 WrapperNode [2023-11-23 20:20:59,532 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:20:59,533 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:59,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:20:59,534 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:20:59,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,634 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-23 20:20:59,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:20:59,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:20:59,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:20:59,636 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:20:59,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:20:59,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:20:59,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:20:59,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:20:59,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:20:59" (1/1) ... [2023-11-23 20:20:59,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:20:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:20:59,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:20:59,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:20:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:20:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:20:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:20:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:20:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:20:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:20:59,962 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:20:59,966 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:21:00,172 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:21:00,225 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:21:00,225 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:21:00,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:00 BoogieIcfgContainer [2023-11-23 20:21:00,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:21:00,228 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:21:00,228 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:21:00,239 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:21:00,241 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:00" (1/1) ... [2023-11-23 20:21:00,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:21:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:21:00,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:21:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:21:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:21:00,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:21:00,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:21:00,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:21:00,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:21:00,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:21:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:00,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:21:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:00,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:21:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:21:00,968 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:21:00,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:21:00,976 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:21:01,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:21:01 ImpRootNode [2023-11-23 20:21:01,007 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:21:01,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:21:01,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:21:01,009 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:21:01,009 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:21:00" (3/4) ... [2023-11-23 20:21:01,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:21:01,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:21:01,014 INFO L158 Benchmark]: Toolchain (without parser) took 3138.48ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 56.4MB in the beginning and 66.7MB in the end (delta: -10.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,015 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 83.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:01,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1654.35ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 56.2MB in the beginning and 72.7MB in the end (delta: -16.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.15ms. Allocated memory is still 121.6MB. Free memory was 72.7MB in the beginning and 69.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,017 INFO L158 Benchmark]: Boogie Preprocessor took 63.86ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,018 INFO L158 Benchmark]: RCFGBuilder took 527.74ms. Allocated memory is still 121.6MB. Free memory was 67.6MB in the beginning and 84.9MB in the end (delta: -17.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,019 INFO L158 Benchmark]: CodeCheck took 779.37ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 67.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:21:01,019 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 121.6MB. Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 652.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:21:01,023 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}, 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 0.66ms. Allocated memory is still 83.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1654.35ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 56.2MB in the beginning and 72.7MB in the end (delta: -16.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.15ms. Allocated memory is still 121.6MB. Free memory was 72.7MB in the beginning and 69.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.86ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 67.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.74ms. Allocated memory is still 121.6MB. Free memory was 67.6MB in the beginning and 84.9MB in the end (delta: -17.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * CodeCheck took 779.37ms. Allocated memory is still 121.6MB. Free memory was 84.9MB in the beginning and 67.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 121.6MB. Free memory was 67.3MB in the beginning and 66.7MB in the end (delta: 652.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:21:01,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51380a3-f32f-4a84-8cad-1301da7f2ebd/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample