./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL --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 c1505671f45043d55fae334a2421f20d581bbaa5dda6423d580cd8cb1c356e93 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:21,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:21,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:51:21,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:51:21,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:51:21,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:21,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:21,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:21,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:21,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:21,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:21,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:21,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:51:21,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:21,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:21,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:21,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:21,499 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:51:21,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:21,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:21,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:21,502 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:21,502 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:21,504 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:21,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:21,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:21,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:21,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:21,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:21,508 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:51:21,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:51:21,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:21,511 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_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1505671f45043d55fae334a2421f20d581bbaa5dda6423d580cd8cb1c356e93 [2023-11-19 02:51:21,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:21,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:21,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:21,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:21,879 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:21,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i [2023-11-19 02:51:25,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:25,973 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:25,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i [2023-11-19 02:51:26,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/c39c3c22e/8a8513f506e24a86b22442482f2fdd1f/FLAG6dac62450 [2023-11-19 02:51:26,023 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/c39c3c22e/8a8513f506e24a86b22442482f2fdd1f [2023-11-19 02:51:26,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:26,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:26,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:26,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:26,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:26,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:26" (1/1) ... [2023-11-19 02:51:26,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c70c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:26, skipping insertion in model container [2023-11-19 02:51:26,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:26" (1/1) ... [2023-11-19 02:51:26,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:26,582 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:27,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:27,229 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:27,255 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:27,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:27,575 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,576 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,576 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,576 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,576 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,577 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:27,586 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:27,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27 WrapperNode [2023-11-19 02:51:27,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:27,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:27,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:27,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:27,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,713 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-19 02:51:27,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:27,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:27,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:27,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:27,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:27,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:27,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:27,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:27,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:27" (1/1) ... [2023-11-19 02:51:27,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:27,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:27,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:27,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:51:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:51:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:51:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 02:51:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:27,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:51:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:51:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:51:28,089 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:28,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:28,321 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:28,365 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:28,365 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:51:28,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:28 BoogieIcfgContainer [2023-11-19 02:51:28,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:28,381 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:28,381 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:28,391 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:28,391 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:28" (1/1) ... [2023-11-19 02:51:28,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:28,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:28,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 02:51:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 02:51:28,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:51:28,472 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:51:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2023-11-19 02:51:28,823 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 02:51:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:51:28,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:28,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:28,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:28,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:29,036 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:51:29,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:29 ImpRootNode [2023-11-19 02:51:29,074 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:29,075 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:29,075 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:29,075 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:29,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:28" (3/4) ... [2023-11-19 02:51:29,078 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:51:29,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:29,081 INFO L158 Benchmark]: Toolchain (without parser) took 3052.87ms. Allocated memory is still 161.5MB. Free memory was 113.6MB in the beginning and 80.0MB in the end (delta: 33.6MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,081 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 121.6MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:29,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1573.25ms. Allocated memory is still 161.5MB. Free memory was 113.6MB in the beginning and 124.9MB in the end (delta: -11.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.83ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 122.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,084 INFO L158 Benchmark]: Boogie Preprocessor took 78.52ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 120.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,085 INFO L158 Benchmark]: RCFGBuilder took 583.80ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 105.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,086 INFO L158 Benchmark]: CodeCheck took 692.88ms. Allocated memory is still 161.5MB. Free memory was 105.4MB in the beginning and 80.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:29,092 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 161.5MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:29,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:19}, argv={13:19}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_14_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 121.6MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1573.25ms. Allocated memory is still 161.5MB. Free memory was 113.6MB in the beginning and 124.9MB in the end (delta: -11.3MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.83ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 122.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.52ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 120.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.80ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 105.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 692.88ms. Allocated memory is still 161.5MB. Free memory was 105.4MB in the beginning and 80.0MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 161.5MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:51:29,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/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 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_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL --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 c1505671f45043d55fae334a2421f20d581bbaa5dda6423d580cd8cb1c356e93 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:32,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:32,383 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 02:51:32,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:32,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:32,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:32,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:32,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:32,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:32,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:32,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:32,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:32,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:32,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:32,462 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:51:32,463 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:51:32,463 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:51:32,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:51:32,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:32,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:32,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:32,467 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:32,468 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:32,469 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:32,469 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:32,470 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:51:32,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:32,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:32,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:32,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:32,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:32,474 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:51:32,474 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:32,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:32,475 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:51:32,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:51:32,476 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_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1505671f45043d55fae334a2421f20d581bbaa5dda6423d580cd8cb1c356e93 [2023-11-19 02:51:32,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:32,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:33,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:33,003 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:33,004 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:33,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i [2023-11-19 02:51:36,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:36,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:36,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_bad.i [2023-11-19 02:51:36,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/3658bd197/a6a44285b4a24bc78212da7af91b4c84/FLAG392ec26af [2023-11-19 02:51:36,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/data/3658bd197/a6a44285b4a24bc78212da7af91b4c84 [2023-11-19 02:51:36,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:36,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:36,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:36,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:36,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:36,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:36" (1/1) ... [2023-11-19 02:51:36,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dc8b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:36, skipping insertion in model container [2023-11-19 02:51:36,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:36" (1/1) ... [2023-11-19 02:51:37,095 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:37,625 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:38,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:38,340 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:38,366 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:38,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:38,587 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,587 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,588 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,588 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,588 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,588 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:38,597 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:38,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38 WrapperNode [2023-11-19 02:51:38,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:38,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:38,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:38,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:38,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,685 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-19 02:51:38,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:38,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:38,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:38,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:38,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:38,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:38,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:38,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:38,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:38" (1/1) ... [2023-11-19 02:51:38,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:38,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:38,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:38,845 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:51:38,846 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:51:38,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:51:38,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:51:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:38,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:38,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:51:38,850 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:51:38,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 02:51:39,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:39,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:39,202 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:39,277 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:39,278 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:51:39,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:39 BoogieIcfgContainer [2023-11-19 02:51:39,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:39,284 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:39,284 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:39,295 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:39,295 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:39" (1/1) ... [2023-11-19 02:51:39,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 02:51:39,364 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 02:51:39,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:51:39,370 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:39,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:39,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:51:39,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:51:39,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:51:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:39,550 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:51:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:39,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 02:51:39,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:51:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:51:39,658 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:51:39,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 02:51:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2023-11-19 02:51:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-19 02:51:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:51:39,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:39,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:39,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:51:39,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:51:39,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:51:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:40,044 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:40,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:40,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:51:40,360 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:51:40,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:40 ImpRootNode [2023-11-19 02:51:40,409 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:40,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:40,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:40,410 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:40,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:39" (3/4) ... [2023-11-19 02:51:40,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:51:40,415 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:40,416 INFO L158 Benchmark]: Toolchain (without parser) took 3449.04ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.4MB in the beginning and 61.9MB in the end (delta: -13.5MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-19 02:51:40,417 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 77.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:40,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1627.20ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.3MB in the beginning and 55.0MB in the end (delta: -6.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:40,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.50ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 52.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:40,419 INFO L158 Benchmark]: Boogie Preprocessor took 45.79ms. Allocated memory is still 104.9MB. Free memory was 52.0MB in the beginning and 49.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:40,420 INFO L158 Benchmark]: RCFGBuilder took 549.09ms. Allocated memory is still 104.9MB. Free memory was 49.9MB in the beginning and 60.5MB in the end (delta: -10.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-19 02:51:40,421 INFO L158 Benchmark]: CodeCheck took 1125.89ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 62.5MB in the end (delta: -2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:40,421 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 104.9MB. Free memory was 62.5MB in the beginning and 61.9MB in the end (delta: 616.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:40,425 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1577] 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) [L1577] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_14_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 77.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1627.20ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.3MB in the beginning and 55.0MB in the end (delta: -6.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.50ms. Allocated memory is still 104.9MB. Free memory was 55.0MB in the beginning and 52.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.79ms. Allocated memory is still 104.9MB. Free memory was 52.0MB in the beginning and 49.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.09ms. Allocated memory is still 104.9MB. Free memory was 49.9MB in the beginning and 60.5MB in the end (delta: -10.5MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * CodeCheck took 1125.89ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 62.5MB in the end (delta: -2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 104.9MB. Free memory was 62.5MB in the beginning and 61.9MB in the end (delta: 616.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:51:40,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98232ab6-169f-4d5c-944f-93ad934d5eb1/bin/ukojak-verify-G8NBE6pJGL/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