./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:58:43,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:58:43,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-02 21:58:43,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:58:43,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:58:43,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:58:43,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:58:43,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:58:43,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:58:43,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:58:43,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:58:43,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:58:43,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:58:43,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:58:43,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:58:43,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:58:43,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:58:43,534 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:58:43,535 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:58:43,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:58:43,536 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:58:43,537 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:58:43,537 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:58:43,537 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:58:43,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:58:43,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:43,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:58:43,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:58:43,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:58:43,540 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:58:43,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:58:43,541 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:58:43,541 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_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2023-12-02 21:58:43,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:58:43,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:58:43,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:58:43,781 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:58:43,781 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:58:43,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2023-12-02 21:58:46,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:58:46,804 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:58:46,805 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2023-12-02 21:58:46,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/c778ea0f9/fb8d1927d75a4700920c3e9f5d9adaa3/FLAGe33b6896c [2023-12-02 21:58:46,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/c778ea0f9/fb8d1927d75a4700920c3e9f5d9adaa3 [2023-12-02 21:58:46,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:58:46,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:58:46,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:46,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:58:46,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:58:46,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:46" (1/1) ... [2023-12-02 21:58:46,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d51081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:46, skipping insertion in model container [2023-12-02 21:58:46,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:46" (1/1) ... [2023-12-02 21:58:46,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:58:47,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:47,630 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:58:47,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:47,871 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:47,871 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:47,871 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:47,871 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:47,871 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:47,877 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:58:47,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47 WrapperNode [2023-12-02 21:58:47,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:47,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:47,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:58:47,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:58:47,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,938 INFO L138 Inliner]: procedures = 500, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-12-02 21:58:47,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:47,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:58:47,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:58:47,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:58:47,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:58:47,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:58:47,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:58:47,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:58:47,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:47" (1/1) ... [2023-12-02 21:58:47,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:47,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:58:48,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:58:48,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:58:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 21:58:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 21:58:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 21:58:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:58:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 21:58:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:58:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:58:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:58:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:58:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:58:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 21:58:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:58:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:58:48,163 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:58:48,165 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:58:48,286 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:58:48,326 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:58:48,326 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 21:58:48,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:48 BoogieIcfgContainer [2023-12-02 21:58:48,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:58:48,328 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:58:48,328 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:58:48,335 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:58:48,336 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:48" (1/1) ... [2023-12-02 21:58:48,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:58:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-02 21:58:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 21:58:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:58:48,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:48,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:58:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:48,545 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:58:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:48,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:58:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:48,725 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 21:58:48,748 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 21:58:48,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:58:48 ImpRootNode [2023-12-02 21:58:48,754 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:58:48,755 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:58:48,755 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:58:48,755 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:58:48,755 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:48" (3/4) ... [2023-12-02 21:58:48,758 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 21:58:48,759 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:58:48,760 INFO L158 Benchmark]: Toolchain (without parser) took 1917.70ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 94.9MB in the beginning and 111.1MB in the end (delta: -16.3MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,761 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:58:48,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1034.35ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 94.4MB in the beginning and 154.3MB in the end (delta: -59.9MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.21ms. Allocated memory is still 209.7MB. Free memory was 154.3MB in the beginning and 151.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,763 INFO L158 Benchmark]: Boogie Preprocessor took 29.21ms. Allocated memory is still 209.7MB. Free memory was 151.2MB in the beginning and 149.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,764 INFO L158 Benchmark]: RCFGBuilder took 358.22ms. Allocated memory is still 209.7MB. Free memory was 149.1MB in the beginning and 133.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,764 INFO L158 Benchmark]: CodeCheck took 425.94ms. Allocated memory is still 209.7MB. Free memory was 133.4MB in the beginning and 111.3MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 21:58:48,765 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 209.7MB. Free memory was 111.3MB in the beginning and 111.1MB in the end (delta: 223.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:58:48,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=64, argc=64, argv={65:66}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, 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 0.14ms. Allocated memory is still 104.9MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1034.35ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 94.4MB in the beginning and 154.3MB in the end (delta: -59.9MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.21ms. Allocated memory is still 209.7MB. Free memory was 154.3MB in the beginning and 151.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.21ms. Allocated memory is still 209.7MB. Free memory was 151.2MB in the beginning and 149.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.22ms. Allocated memory is still 209.7MB. Free memory was 149.1MB in the beginning and 133.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 425.94ms. Allocated memory is still 209.7MB. Free memory was 133.4MB in the beginning and 111.3MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 209.7MB. Free memory was 111.3MB in the beginning and 111.1MB in the end (delta: 223.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 21:58:48,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:58:50,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:58:50,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-02 21:58:50,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:58:50,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:58:50,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:58:50,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:58:50,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:58:50,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:58:50,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:58:50,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:58:50,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:58:50,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:58:50,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:58:50,805 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:58:50,806 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:58:50,806 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:58:50,807 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:58:50,807 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:58:50,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:58:50,808 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:58:50,810 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:58:50,810 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:58:50,810 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:58:50,811 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:50,811 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:58:50,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:58:50,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:50,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:58:50,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:58:50,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:58:50,814 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:58:50,814 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:50,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:58:50,815 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:58:50,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:58:50,815 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_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2023-12-02 21:58:51,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:58:51,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:58:51,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:58:51,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:58:51,116 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:58:51,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2023-12-02 21:58:53,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:58:54,209 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:58:54,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2023-12-02 21:58:54,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/0680592c2/90056f9d8cb34bac8ced7882727f796e/FLAGf2d8c2e20 [2023-12-02 21:58:54,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/data/0680592c2/90056f9d8cb34bac8ced7882727f796e [2023-12-02 21:58:54,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:58:54,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:58:54,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:54,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:58:54,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:58:54,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:54" (1/1) ... [2023-12-02 21:58:54,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6e04b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:54, skipping insertion in model container [2023-12-02 21:58:54,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:58:54" (1/1) ... [2023-12-02 21:58:54,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:58:55,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:55,055 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 21:58:55,071 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:58:55,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:55,143 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:58:55,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:58:55,328 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:55,329 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:55,329 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:55,329 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:55,329 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:58:55,335 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:58:55,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55 WrapperNode [2023-12-02 21:58:55,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:58:55,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:55,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:58:55,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:58:55,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,404 INFO L138 Inliner]: procedures = 505, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-12-02 21:58:55,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:58:55,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:58:55,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:58:55,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:58:55,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:58:55,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:58:55,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:58:55,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:58:55,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:58:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:58:55,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:58:55,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:58:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 21:58:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:58:55,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:58:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 21:58:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:58:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 21:58:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 21:58:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-02 21:58:55,670 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:58:55,671 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:58:55,895 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:58:55,937 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:58:55,937 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 21:58:55,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:55 BoogieIcfgContainer [2023-12-02 21:58:55,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:58:55,939 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:58:55,939 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:58:55,948 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:58:55,948 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:55" (1/1) ... [2023-12-02 21:58:55,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:58:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:56,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-02 21:58:56,005 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 21:58:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:58:56,009 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:56,009 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:56,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:56,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:56,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:58:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:56,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:58:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:57,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 21:58:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 21:58:57,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:58:57,969 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 21:58:57,992 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 21:58:57,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:58:57 ImpRootNode [2023-12-02 21:58:57,998 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:58:57,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:58:57,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:58:57,999 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:58:57,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:58:55" (3/4) ... [2023-12-02 21:58:58,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 21:58:58,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:58:58,003 INFO L158 Benchmark]: Toolchain (without parser) took 3756.56ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 72.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-12-02 21:58:58,004 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:58:58,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.68ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 36.9MB in the end (delta: 37.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2023-12-02 21:58:58,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.92ms. Allocated memory is still 102.8MB. Free memory was 36.6MB in the beginning and 78.1MB in the end (delta: -41.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-12-02 21:58:58,006 INFO L158 Benchmark]: Boogie Preprocessor took 35.47ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 75.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:58:58,006 INFO L158 Benchmark]: RCFGBuilder took 497.00ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 55.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 21:58:58,007 INFO L158 Benchmark]: CodeCheck took 2058.60ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 72.5MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:58:58,007 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 102.8MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:58:58,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={-9223372036854775808:0}, dataVoidPtr={-9223372036854775808:0}, dataVoidPtr={-9223372036854775808:0}, 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 0.20ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.68ms. Allocated memory is still 102.8MB. Free memory was 74.6MB in the beginning and 36.9MB in the end (delta: 37.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.92ms. Allocated memory is still 102.8MB. Free memory was 36.6MB in the beginning and 78.1MB in the end (delta: -41.5MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.47ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 75.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.00ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 55.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 2058.60ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 72.5MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 102.8MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 21:58:58,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a2f03c-43fb-4f36-a2e5-b267a406bbbe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample