./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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_113bda73-cbfb-47f8-be50-0bb87664b2ce/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 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:40:25,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:40:25,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-02 22:40:25,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:40:25,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:40:25,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:40:25,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:40:25,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:40:25,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:40:25,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:40:25,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:40:25,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:40:25,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:40:25,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:40:25,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:40:25,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:40:25,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:40:25,253 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 22:40:25,254 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:40:25,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:40:25,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:40:25,255 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:40:25,256 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:40:25,256 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:40:25,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:40:25,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:40:25,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:40:25,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:40:25,258 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:40:25,259 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:40:25,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:40:25,259 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:40:25,260 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_113bda73-cbfb-47f8-be50-0bb87664b2ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c [2023-12-02 22:40:25,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:40:25,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:40:25,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:40:25,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:40:25,528 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:40:25,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2023-12-02 22:40:28,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:40:28,531 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:40:28,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2023-12-02 22:40:28,557 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/0e351a1d8/6da54fe1da1943399ea5bdca43722451/FLAG9482843d9 [2023-12-02 22:40:28,571 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/0e351a1d8/6da54fe1da1943399ea5bdca43722451 [2023-12-02 22:40:28,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:40:28,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:40:28,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:40:28,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:40:28,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:40:28,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:40:28" (1/1) ... [2023-12-02 22:40:28,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510a04a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:28, skipping insertion in model container [2023-12-02 22:40:28,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:40:28" (1/1) ... [2023-12-02 22:40:28,640 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:40:29,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:40:29,352 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:40:29,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:40:29,559 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:29,559 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:29,559 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:29,559 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:29,559 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:29,567 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:40:29,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29 WrapperNode [2023-12-02 22:40:29,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:40:29,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:40:29,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:40:29,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:40:29,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,627 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-12-02 22:40:29,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:40:29,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:40:29,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:40:29,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:40:29,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,651 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:40:29,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:40:29,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:40:29,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:40:29,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:29,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:40:29,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:40:29,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:40:29,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:40:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 22:40:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 22:40:29,717 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 22:40:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:40:29,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 22:40:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:40:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:40:29,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:40:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:40:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 22:40:29,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:40:29,843 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:40:29,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:40:29,955 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:40:29,987 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:40:29,987 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 22:40:29,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:29 BoogieIcfgContainer [2023-12-02 22:40:29,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:40:29,990 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:40:29,990 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:40:29,997 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:40:29,998 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:29" (1/1) ... [2023-12-02 22:40:30,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:40:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:30,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-12-02 22:40:30,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-02 22:40:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:40:30,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:30,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:40:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:30,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:40:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:30,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:40:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:30,358 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 22:40:30,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 22:40:30,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:40:30 ImpRootNode [2023-12-02 22:40:30,388 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:40:30,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:40:30,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:40:30,389 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:40:30,390 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:29" (3/4) ... [2023-12-02 22:40:30,392 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 22:40:30,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:40:30,394 INFO L158 Benchmark]: Toolchain (without parser) took 1818.57ms. Allocated memory is still 163.6MB. Free memory was 117.7MB in the beginning and 126.9MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:30,394 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:30,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 991.59ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 76.8MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 22:40:30,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.96ms. Allocated memory is still 163.6MB. Free memory was 76.8MB in the beginning and 74.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:40:30,396 INFO L158 Benchmark]: Boogie Preprocessor took 30.19ms. Allocated memory is still 163.6MB. Free memory was 74.1MB in the beginning and 72.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:40:30,397 INFO L158 Benchmark]: RCFGBuilder took 329.85ms. Allocated memory is still 163.6MB. Free memory was 72.6MB in the beginning and 57.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 22:40:30,397 INFO L158 Benchmark]: CodeCheck took 398.56ms. Allocated memory is still 163.6MB. Free memory was 57.3MB in the beginning and 126.9MB in the end (delta: -69.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:30,398 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 163.6MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:30,401 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572. 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); [L1572] 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) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={18:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] 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] [L1565] 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 0.18ms. Allocated memory is still 111.1MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 991.59ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 76.8MB in the end (delta: 40.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.96ms. Allocated memory is still 163.6MB. Free memory was 76.8MB in the beginning and 74.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.19ms. Allocated memory is still 163.6MB. Free memory was 74.1MB in the beginning and 72.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.85ms. Allocated memory is still 163.6MB. Free memory was 72.6MB in the beginning and 57.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 398.56ms. Allocated memory is still 163.6MB. Free memory was 57.3MB in the beginning and 126.9MB in the end (delta: -69.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 163.6MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: 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 22:40:30,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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_113bda73-cbfb-47f8-be50-0bb87664b2ce/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 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:40:32,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:40:32,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-02 22:40:32,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:40:32,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:40:32,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:40:32,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:40:32,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:40:32,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:40:32,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:40:32,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:40:32,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:40:32,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:40:32,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:40:32,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:40:32,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:40:32,448 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 22:40:32,448 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:40:32,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:40:32,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:40:32,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:40:32,450 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:40:32,451 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:40:32,451 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:40:32,452 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:32,452 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:40:32,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:40:32,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:40:32,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:40:32,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:40:32,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:40:32,455 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:40:32,455 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:32,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:40:32,456 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:40:32,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:40:32,456 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_113bda73-cbfb-47f8-be50-0bb87664b2ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c [2023-12-02 22:40:32,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:40:32,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:40:32,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:40:32,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:40:32,788 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:40:32,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2023-12-02 22:40:35,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:40:35,885 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:40:35,885 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2023-12-02 22:40:35,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/987f0abae/9fe1d618a44b4edfb20cc6960a9badc2/FLAGb4920216d [2023-12-02 22:40:35,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/data/987f0abae/9fe1d618a44b4edfb20cc6960a9badc2 [2023-12-02 22:40:35,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:40:35,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:40:35,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:40:35,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:40:35,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:40:35,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:40:35" (1/1) ... [2023-12-02 22:40:35,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11438c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:35, skipping insertion in model container [2023-12-02 22:40:35,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:40:35" (1/1) ... [2023-12-02 22:40:35,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:40:36,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:40:36,740 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:40:36,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:40:36,976 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:36,976 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:36,976 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:36,977 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:36,977 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:40:36,984 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:40:36,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36 WrapperNode [2023-12-02 22:40:36,985 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:40:36,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:40:36,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:40:36,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:40:36,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,045 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-12-02 22:40:37,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:40:37,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:40:37,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:40:37,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:40:37,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:40:37,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:40:37,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:40:37,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:40:37,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:40:36" (1/1) ... [2023-12-02 22:40:37,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:40:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:40:37,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:40:37,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:40:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-02 22:40:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 22:40:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 22:40:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:40:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 22:40:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-02 22:40:37,309 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:40:37,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:40:37,437 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:40:37,476 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:40:37,476 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 22:40:37,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:37 BoogieIcfgContainer [2023-12-02 22:40:37,478 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:40:37,479 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:40:37,479 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:40:37,489 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:40:37,489 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:37" (1/1) ... [2023-12-02 22:40:37,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:40:37,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:40:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-12-02 22:40:37,556 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-02 22:40:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:40:37,560 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:40:37,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:40:37,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:40:37,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:40:37,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:40:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:37,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:40:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:37,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:40:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:40:38,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:40:38,008 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-02 22:40:38,031 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 22:40:38,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:40:38 ImpRootNode [2023-12-02 22:40:38,037 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:40:38,038 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:40:38,038 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:40:38,038 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:40:38,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:40:37" (3/4) ... [2023-12-02 22:40:38,041 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 22:40:38,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:40:38,043 INFO L158 Benchmark]: Toolchain (without parser) took 2119.49ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.4MB in the beginning and 51.2MB in the end (delta: -2.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,043 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:38,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1061.39ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.2MB in the beginning and 57.7MB in the end (delta: -9.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.20ms. Allocated memory is still 104.9MB. Free memory was 57.7MB in the beginning and 54.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,045 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 104.9MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,046 INFO L158 Benchmark]: RCFGBuilder took 394.82ms. Allocated memory is still 104.9MB. Free memory was 52.5MB in the beginning and 69.4MB in the end (delta: -16.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,046 INFO L158 Benchmark]: CodeCheck took 558.55ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 51.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 22:40:38,047 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 51.2MB in the end (delta: 598.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:40:38,050 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, 18 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572. 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); [L1572] 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) [L1572] 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] [L1573] CALL CWE191_Integer_Underflow__int_fgets_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] 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] [L1565] 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 0.19ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1061.39ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.2MB in the beginning and 57.7MB in the end (delta: -9.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.20ms. Allocated memory is still 104.9MB. Free memory was 57.7MB in the beginning and 54.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 104.9MB. Free memory was 54.6MB in the beginning and 52.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.82ms. Allocated memory is still 104.9MB. Free memory was 52.5MB in the beginning and 69.4MB in the end (delta: -16.9MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * CodeCheck took 558.55ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 51.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 104.9MB. Free memory was 51.8MB in the beginning and 51.2MB in the end (delta: 598.8kB). 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 22:40:38,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_113bda73-cbfb-47f8-be50-0bb87664b2ce/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