./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_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_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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_24659c8d-81a2-47af-a7f2-264972d5f6a7/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 7482029fded7ee13b4d79a454066f6d7b3a41325a996d5eb90d8682f421843f7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:53:15,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:53:15,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 00:53:15,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:53:15,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:53:15,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:53:15,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:53:15,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:53:15,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:53:15,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:53:15,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:53:15,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:53:15,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:53:15,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:53:15,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:53:15,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:53:15,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:53:15,196 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:53:15,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:53:15,196 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:53:15,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:53:15,198 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:53:15,198 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:53:15,198 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:53:15,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:53:15,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:53:15,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:53:15,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:53:15,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:53:15,200 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:53:15,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:53:15,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:53:15,202 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_24659c8d-81a2-47af-a7f2-264972d5f6a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7482029fded7ee13b4d79a454066f6d7b3a41325a996d5eb90d8682f421843f7 [2023-12-03 00:53:15,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:53:15,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:53:15,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:53:15,450 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:53:15,450 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:53:15,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i [2023-12-03 00:53:18,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:53:18,520 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:53:18,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i [2023-12-03 00:53:18,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/00c75e1a0/10210682680f401bace0ded840b33802/FLAG5e4991860 [2023-12-03 00:53:18,556 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/00c75e1a0/10210682680f401bace0ded840b33802 [2023-12-03 00:53:18,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:53:18,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:53:18,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:53:18,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:53:18,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:53:18,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:53:18" (1/1) ... [2023-12-03 00:53:18,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237d7216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:18, skipping insertion in model container [2023-12-03 00:53:18,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:53:18" (1/1) ... [2023-12-03 00:53:18,627 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:53:19,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:53:19,393 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:53:19,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:53:19,630 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:19,630 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:19,630 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:19,631 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:19,631 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:19,638 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:53:19,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19 WrapperNode [2023-12-03 00:53:19,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:53:19,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:53:19,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:53:19,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:53:19,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,701 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2023-12-03 00:53:19,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:53:19,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:53:19,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:53:19,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:53:19,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,716 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:53:19,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:53:19,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:53:19,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:53:19,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:19" (1/1) ... [2023-12-03 00:53:19,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:53:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:53:19,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:53:19,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:53:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:53:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:53:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:53:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:53:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 00:53:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:53:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:53:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:53:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:53:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:53:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:53:19,936 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:53:19,938 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:53:20,048 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:53:20,086 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:53:20,086 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:53:20,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:20 BoogieIcfgContainer [2023-12-03 00:53:20,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:53:20,089 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:53:20,089 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:53:20,096 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:53:20,097 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:20" (1/1) ... [2023-12-03 00:53:20,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:53:20,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:53:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 00:53:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 00:53:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:53:20,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:53:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:53:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:20,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:53:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:20,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:53:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:20,430 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 00:53:20,450 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 00:53:20,453 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated [2023-12-03 00:53:20,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:53:20 ImpRootNode [2023-12-03 00:53:20,457 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:53:20,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:53:20,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:53:20,458 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:53:20,459 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:20" (3/4) ... [2023-12-03 00:53:20,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:53:20,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:53:20,463 INFO L158 Benchmark]: Toolchain (without parser) took 1902.81ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 118.0MB in the beginning and 116.3MB in the end (delta: 1.7MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,463 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:53:20,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.69ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 118.0MB in the beginning and 156.1MB in the end (delta: -38.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.96ms. Allocated memory is still 205.5MB. Free memory was 156.1MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,465 INFO L158 Benchmark]: Boogie Preprocessor took 30.12ms. Allocated memory is still 205.5MB. Free memory was 153.0MB in the beginning and 150.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,466 INFO L158 Benchmark]: RCFGBuilder took 354.35ms. Allocated memory is still 205.5MB. Free memory was 150.9MB in the beginning and 136.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,466 INFO L158 Benchmark]: CodeCheck took 368.70ms. Allocated memory is still 205.5MB. Free memory was 135.2MB in the beginning and 117.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,467 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 205.5MB. Free memory was 117.2MB in the beginning and 116.3MB in the end (delta: 911.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:53:20,471 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: 0.3s, 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, 0.0s 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: 1582]: 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)=18, argc=18, argv={13:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_52_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_postdec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_52c_badSink(data) [L1582] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.69ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 118.0MB in the beginning and 156.1MB in the end (delta: -38.2MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.96ms. Allocated memory is still 205.5MB. Free memory was 156.1MB in the beginning and 153.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.12ms. Allocated memory is still 205.5MB. Free memory was 153.0MB in the beginning and 150.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.35ms. Allocated memory is still 205.5MB. Free memory was 150.9MB in the beginning and 136.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 368.70ms. Allocated memory is still 205.5MB. Free memory was 135.2MB in the beginning and 117.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 205.5MB. Free memory was 117.2MB in the beginning and 116.3MB in the end (delta: 911.8kB). Peak memory consumption was 2.1MB. 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 Unfinished Backtranslation: IdentifierExpression #t~post104 could not be translated - 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 [2023-12-03 00:53:20,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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_24659c8d-81a2-47af-a7f2-264972d5f6a7/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 7482029fded7ee13b4d79a454066f6d7b3a41325a996d5eb90d8682f421843f7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:53:22,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:53:22,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 00:53:22,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:53:22,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:53:22,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:53:22,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:53:22,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:53:22,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:53:22,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:53:22,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:53:22,545 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:53:22,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:53:22,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:53:22,547 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:53:22,548 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:53:22,548 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:53:22,549 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:53:22,549 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:53:22,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:53:22,550 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:53:22,551 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:53:22,552 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:53:22,552 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:53:22,553 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:53:22,553 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:53:22,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:53:22,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:53:22,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:53:22,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:53:22,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:53:22,556 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:53:22,556 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:53:22,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:53:22,556 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:53:22,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:53:22,557 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_24659c8d-81a2-47af-a7f2-264972d5f6a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7482029fded7ee13b4d79a454066f6d7b3a41325a996d5eb90d8682f421843f7 [2023-12-03 00:53:22,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:53:22,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:53:22,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:53:22,886 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:53:22,887 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:53:22,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i [2023-12-03 00:53:25,615 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:53:25,990 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:53:25,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_52_bad.i [2023-12-03 00:53:26,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/abc856561/7a2eab0000db4cdb83786fb055d5abdb/FLAG6a7c19f66 [2023-12-03 00:53:26,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/data/abc856561/7a2eab0000db4cdb83786fb055d5abdb [2023-12-03 00:53:26,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:53:26,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:53:26,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:53:26,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:53:26,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:53:26,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:53:26" (1/1) ... [2023-12-03 00:53:26,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2291738a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:26, skipping insertion in model container [2023-12-03 00:53:26,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:53:26" (1/1) ... [2023-12-03 00:53:26,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:53:26,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:53:26,846 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:53:26,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:53:27,086 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:27,087 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:27,087 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:27,087 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:27,087 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:53:27,095 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:53:27,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27 WrapperNode [2023-12-03 00:53:27,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:53:27,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:53:27,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:53:27,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:53:27,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,160 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2023-12-03 00:53:27,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:53:27,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:53:27,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:53:27,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:53:27,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:53:27,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:53:27,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:53:27,200 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:53:27,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:53:27,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:53:27,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:53:27,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:53:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:53:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:53:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:53:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:53:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:53:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:53:27,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:53:27,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:53:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:53:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:53:27,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 00:53:27,422 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:53:27,424 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:53:27,556 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:53:27,601 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:53:27,601 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:53:27,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:27 BoogieIcfgContainer [2023-12-03 00:53:27,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:53:27,604 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:53:27,604 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:53:27,611 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:53:27,611 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:27" (1/1) ... [2023-12-03 00:53:27,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:53:27,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:53:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 00:53:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 00:53:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 00:53:27,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:53:27,673 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:53:27,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:53:27,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:53:27,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:53:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:27,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:53:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:28,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:53:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:53:28,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:53:28,090 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 00:53:28,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 00:53:28,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-12-03 00:53:28,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:53:28 ImpRootNode [2023-12-03 00:53:28,117 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:53:28,118 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:53:28,118 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:53:28,118 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:53:28,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:53:27" (3/4) ... [2023-12-03 00:53:28,120 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:53:28,121 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:53:28,122 INFO L158 Benchmark]: Toolchain (without parser) took 2088.48ms. Allocated memory is still 127.9MB. Free memory was 101.2MB in the beginning and 72.5MB in the end (delta: 28.7MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,122 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:53:28,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1060.56ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 66.4MB in the end (delta: 34.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 127.9MB. Free memory was 66.1MB in the beginning and 62.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,124 INFO L158 Benchmark]: Boogie Preprocessor took 37.34ms. Allocated memory is still 127.9MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,125 INFO L158 Benchmark]: RCFGBuilder took 403.12ms. Allocated memory is still 127.9MB. Free memory was 60.7MB in the beginning and 90.6MB in the end (delta: -29.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,125 INFO L158 Benchmark]: CodeCheck took 513.57ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 72.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 00:53:28,126 INFO L158 Benchmark]: Witness Printer took 3.75ms. Allocated memory is still 127.9MB. Free memory was 72.9MB in the beginning and 72.5MB in the end (delta: 401.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:53:28,129 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: 0.5s, 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, 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: 1582]: 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_postdec_52_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_postdec_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_52c_badSink(data) [L1582] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1060.56ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 66.4MB in the end (delta: 34.5MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.81ms. Allocated memory is still 127.9MB. Free memory was 66.1MB in the beginning and 62.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.34ms. Allocated memory is still 127.9MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.12ms. Allocated memory is still 127.9MB. Free memory was 60.7MB in the beginning and 90.6MB in the end (delta: -29.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * CodeCheck took 513.57ms. Allocated memory is still 127.9MB. Free memory was 90.6MB in the beginning and 72.9MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.75ms. Allocated memory is still 127.9MB. Free memory was 72.9MB in the beginning and 72.5MB in the end (delta: 401.1kB). 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 Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated - 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 [2023-12-03 00:53:28,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24659c8d-81a2-47af-a7f2-264972d5f6a7/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