./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:23:28,847 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:23:28,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:23:28,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:23:28,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:23:28,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:23:28,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:23:28,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:23:28,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:23:28,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:23:28,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:23:28,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:23:28,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:23:28,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:23:28,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:23:28,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:23:28,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:23:28,943 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:23:28,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:23:28,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:23:28,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:23:28,948 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:23:28,949 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:23:28,949 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:23:28,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:23:28,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:28,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:23:28,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:23:28,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:23:28,951 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:23:28,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:23:28,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:23:28,952 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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2023-12-03 01:23:29,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:23:29,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:23:29,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:23:29,176 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:23:29,176 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:23:29,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2023-12-03 01:23:31,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:23:32,237 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:23:32,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2023-12-03 01:23:32,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/40ce5067a/1e3f711770af4291aba56dbc7748129d/FLAGd92cf6bad [2023-12-03 01:23:32,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/40ce5067a/1e3f711770af4291aba56dbc7748129d [2023-12-03 01:23:32,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:23:32,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:23:32,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:32,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:23:32,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:23:32,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:32" (1/1) ... [2023-12-03 01:23:32,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f0a12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:32, skipping insertion in model container [2023-12-03 01:23:32,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:32" (1/1) ... [2023-12-03 01:23:32,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:23:33,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:33,075 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:23:33,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:33,327 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:33,328 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:33,328 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:33,328 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:33,328 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:33,337 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:23:33,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33 WrapperNode [2023-12-03 01:23:33,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:33,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:33,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:23:33,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:23:33,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,404 INFO L138 Inliner]: procedures = 503, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2023-12-03 01:23:33,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:33,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:23:33,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:23:33,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:23:33,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,420 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,420 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,433 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:23:33,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:23:33,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:23:33,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:23:33,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:33,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:23:33,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:23:33,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:23:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:23:33,505 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 01:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:23:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:23:33,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:23:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:23:33,666 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:23:33,669 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:23:33,792 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:23:33,838 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:23:33,838 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:23:33,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:33 BoogieIcfgContainer [2023-12-03 01:23:33,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:23:33,841 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:23:33,841 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:23:33,849 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:23:33,850 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:33" (1/1) ... [2023-12-03 01:23:33,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:23:33,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:23:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:23:33,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:23:33,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:33,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:23:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:34,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:23:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:34,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:23:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:34,197 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:23:34,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 01:23:34,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:23:34 ImpRootNode [2023-12-03 01:23:34,225 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:23:34,226 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:23:34,226 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:23:34,226 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:23:34,227 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:33" (3/4) ... [2023-12-03 01:23:34,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:23:34,231 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:23:34,232 INFO L158 Benchmark]: Toolchain (without parser) took 1950.96ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 90.9MB in the beginning and 79.6MB in the end (delta: 11.2MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,232 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:23:34,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1056.19ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 90.9MB in the beginning and 120.5MB in the end (delta: -29.6MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,234 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.28ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 117.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,235 INFO L158 Benchmark]: Boogie Preprocessor took 31.27ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,235 INFO L158 Benchmark]: RCFGBuilder took 402.14ms. Allocated memory is still 178.3MB. Free memory was 115.3MB in the beginning and 99.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,236 INFO L158 Benchmark]: CodeCheck took 384.61ms. Allocated memory is still 178.3MB. Free memory was 99.5MB in the beginning and 79.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 01:23:34,237 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 178.3MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:23:34,240 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: 1592]: 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)=13, argc=13, argv={12:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 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 0.16ms. Allocated memory is still 104.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1056.19ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 90.9MB in the beginning and 120.5MB in the end (delta: -29.6MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.28ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 117.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.27ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 116.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.14ms. Allocated memory is still 178.3MB. Free memory was 115.3MB in the beginning and 99.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 384.61ms. Allocated memory is still 178.3MB. Free memory was 99.5MB in the beginning and 79.6MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 178.3MB. Free memory is still 79.6MB. 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 [2023-12-03 01:23:34,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:23:36,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:23:36,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 01:23:36,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:23:36,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:23:36,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:23:36,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:23:36,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:23:36,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:23:36,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:23:36,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:23:36,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:23:36,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:23:36,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:23:36,321 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:23:36,321 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:23:36,322 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:23:36,322 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:23:36,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:23:36,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:23:36,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:23:36,325 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:23:36,326 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:23:36,326 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:23:36,327 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:36,327 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:23:36,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:23:36,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:36,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:23:36,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:23:36,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:23:36,330 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:23:36,330 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:36,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:23:36,331 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:23:36,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:23:36,331 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2023-12-03 01:23:36,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:23:36,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:23:36,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:23:36,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:23:36,643 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:23:36,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2023-12-03 01:23:39,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:23:39,798 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:23:39,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2023-12-03 01:23:39,821 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/ea2f48064/a330b703345a4d17b75bdb24dde25761/FLAGdfb5dc1f8 [2023-12-03 01:23:39,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/data/ea2f48064/a330b703345a4d17b75bdb24dde25761 [2023-12-03 01:23:39,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:23:39,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:23:39,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:39,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:23:39,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:23:39,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:39" (1/1) ... [2023-12-03 01:23:39,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fef152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:39, skipping insertion in model container [2023-12-03 01:23:39,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:23:39" (1/1) ... [2023-12-03 01:23:39,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:23:40,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:40,700 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:23:40,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:23:40,937 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:40,937 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:40,937 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:40,937 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:40,937 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:23:40,945 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:23:40,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40 WrapperNode [2023-12-03 01:23:40,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:23:40,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:40,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:23:40,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:23:40,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:40,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,006 INFO L138 Inliner]: procedures = 508, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-12-03 01:23:41,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:23:41,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:23:41,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:23:41,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:23:41,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:23:41,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:23:41,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:23:41,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:23:41,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:23:40" (1/1) ... [2023-12-03 01:23:41,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:23:41,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:23:41,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:23:41,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:23:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:23:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:23:41,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:23:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:23:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:23:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:23:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:23:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:23:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:23:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:23:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 01:23:41,307 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:23:41,309 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:23:41,433 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:23:41,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:23:41,479 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:23:41,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:41 BoogieIcfgContainer [2023-12-03 01:23:41,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:23:41,482 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:23:41,482 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:23:41,489 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:23:41,489 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:41" (1/1) ... [2023-12-03 01:23:41,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:23:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:23:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:23:41,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:23:41,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:41,546 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:41,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:41,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:23:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:41,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:23:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:41,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:23:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:23:41,980 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:23:41,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:23:41,991 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:23:42,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 01:23:42,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:23:42 ImpRootNode [2023-12-03 01:23:42,018 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:23:42,019 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:23:42,019 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:23:42,019 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:23:42,019 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:23:41" (3/4) ... [2023-12-03 01:23:42,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:23:42,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:23:42,023 INFO L158 Benchmark]: Toolchain (without parser) took 2184.04ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 59.4MB in the end (delta: 30.5MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,024 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:23:42,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1105.73ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 56.5MB in the end (delta: 33.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.96ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 53.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,025 INFO L158 Benchmark]: Boogie Preprocessor took 38.60ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,026 INFO L158 Benchmark]: RCFGBuilder took 434.21ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 78.3MB in the end (delta: -26.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,027 INFO L158 Benchmark]: CodeCheck took 536.18ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 60.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,027 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 59.4MB in the end (delta: 726.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:23:42,031 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 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 0.26ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1105.73ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 56.5MB in the end (delta: 33.5MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.96ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 53.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.60ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 51.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.21ms. Allocated memory is still 117.4MB. Free memory was 51.4MB in the beginning and 78.3MB in the end (delta: -26.9MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * CodeCheck took 536.18ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 60.1MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 59.4MB in the end (delta: 726.5kB). 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~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 [2023-12-03 01:23:42,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf3746d7-0c9b-4448-9ac7-1e02161ad970/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample