./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC --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 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:19,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:19,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:28:19,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:28:19,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:28:19,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:19,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:19,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:19,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:19,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:19,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:19,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:19,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:28:19,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:19,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:19,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:19,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:19,969 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:28:19,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:28:19,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:19,971 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:19,972 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:19,973 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:19,973 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:19,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:19,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:19,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:19,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:19,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:19,977 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:28:19,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:28:19,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:19,979 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_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 [2023-11-23 20:28:20,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:20,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:20,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:20,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:20,349 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:20,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2023-11-23 20:28:23,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:23,990 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:23,994 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2023-11-23 20:28:24,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/5475c03b7/8b1f502cd55545919496f66a7f7a0797/FLAGa14d795f4 [2023-11-23 20:28:24,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/5475c03b7/8b1f502cd55545919496f66a7f7a0797 [2023-11-23 20:28:24,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:24,043 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:24,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:24,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:24,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:24,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:24" (1/1) ... [2023-11-23 20:28:24,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56283906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:24, skipping insertion in model container [2023-11-23 20:28:24,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:24" (1/1) ... [2023-11-23 20:28:24,121 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:24,564 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:28:25,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:25,427 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:25,460 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:28:25,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:25,714 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,714 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,714 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,715 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,715 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,715 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:25,724 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:25,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25 WrapperNode [2023-11-23 20:28:25,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:25,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:25,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:25,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:25,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,807 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-23 20:28:25,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:25,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:25,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:25,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:25,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:25,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:25,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:25,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:25,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:25" (1/1) ... [2023-11-23 20:28:25,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:25,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:25,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:25,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:26,019 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:28:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:28:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:28:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:28:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:28:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:26,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:26,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:28:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:28:26,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:28:26,239 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:26,242 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:26,448 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:26,502 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:28:26,502 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:28:26,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:26 BoogieIcfgContainer [2023-11-23 20:28:26,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:28:26,505 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:28:26,506 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:28:26,518 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:28:26,518 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:26" (1/1) ... [2023-11-23 20:28:26,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:28:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-23 20:28:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-23 20:28:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:28:26,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:26,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:28:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 21 transitions. [2023-11-23 20:28:27,038 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-23 20:28:27,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:28:27,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:28:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:27,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:28:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:27,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:28:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:27,237 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:28:27,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-23 20:28:27,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:28:27 ImpRootNode [2023-11-23 20:28:27,282 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:28:27,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:28:27,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:28:27,283 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:28:27,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:26" (3/4) ... [2023-11-23 20:28:27,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:28:27,287 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:28:27,288 INFO L158 Benchmark]: Toolchain (without parser) took 3244.62ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 68.9MB in the beginning and 76.0MB in the end (delta: -7.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,288 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:27,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1680.11ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 77.6MB in the end (delta: -9.0MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.55ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 75.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,291 INFO L158 Benchmark]: Boogie Preprocessor took 98.40ms. Allocated memory is still 151.0MB. Free memory was 75.0MB in the beginning and 118.7MB in the end (delta: -43.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,291 INFO L158 Benchmark]: RCFGBuilder took 596.78ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 104.1MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,292 INFO L158 Benchmark]: CodeCheck took 776.53ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 76.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:28:27,293 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 151.0MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 897.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:27,297 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: 0.7s, 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, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 7 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, 0.2s 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_10_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 \read(globalTrue) [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 \read(globalTrue) [L1569] data-- 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 0.35ms. Allocated memory is still 117.4MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1680.11ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 77.6MB in the end (delta: -9.0MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.55ms. Allocated memory is still 151.0MB. Free memory was 77.6MB in the beginning and 75.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.40ms. Allocated memory is still 151.0MB. Free memory was 75.0MB in the beginning and 118.7MB in the end (delta: -43.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 596.78ms. Allocated memory is still 151.0MB. Free memory was 118.6MB in the beginning and 104.1MB in the end (delta: 14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 776.53ms. Allocated memory is still 151.0MB. Free memory was 104.1MB in the beginning and 76.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 151.0MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 897.6kB). 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: IdentifierExpression #t~post100 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:28:27,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC --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 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:28:29,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:28:30,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:28:30,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:28:30,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:28:30,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:28:30,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:28:30,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:28:30,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:28:30,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:28:30,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:28:30,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:28:30,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:28:30,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:28:30,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:28:30,109 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:28:30,109 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:28:30,110 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:28:30,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:28:30,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:28:30,111 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:28:30,112 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:28:30,112 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:28:30,113 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:28:30,113 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:30,114 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:28:30,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:28:30,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:30,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:28:30,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:28:30,117 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:28:30,117 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:28:30,117 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:30,118 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:28:30,118 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:28:30,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:28:30,119 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_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c06bc01125067b5395e96a559359379a185a2b06e09ddefee7b667ea34383c9 [2023-11-23 20:28:30,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:28:30,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:28:30,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:28:30,539 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:28:30,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:28:30,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2023-11-23 20:28:33,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:28:34,226 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:28:34,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_10_bad.i [2023-11-23 20:28:34,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/21357d27c/469887492426420f8af21d1f82d2434f/FLAG1004cf68b [2023-11-23 20:28:34,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/data/21357d27c/469887492426420f8af21d1f82d2434f [2023-11-23 20:28:34,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:28:34,282 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:28:34,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:34,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:28:34,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:28:34,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:34" (1/1) ... [2023-11-23 20:28:34,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b1b04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:34, skipping insertion in model container [2023-11-23 20:28:34,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:28:34" (1/1) ... [2023-11-23 20:28:34,380 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:28:34,895 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:28:35,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:35,639 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:28:35,668 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:28:35,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:28:35,917 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,917 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,918 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,918 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,918 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,918 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:28:35,927 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:28:35,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35 WrapperNode [2023-11-23 20:28:35,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:28:35,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:35,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:28:35,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:28:35,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:35,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,002 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-23 20:28:36,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:28:36,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:28:36,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:28:36,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:28:36,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:28:36,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:28:36,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:28:36,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:28:36,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:28:35" (1/1) ... [2023-11-23 20:28:36,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:28:36,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:28:36,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:28:36,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:28:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:28:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:28:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:28:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:28:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:28:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:28:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:28:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:28:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:28:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:28:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:28:36,309 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:28:36,312 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:28:36,574 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:28:36,662 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:28:36,662 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:28:36,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:36 BoogieIcfgContainer [2023-11-23 20:28:36,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:28:36,666 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:28:36,666 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:28:36,677 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:28:36,678 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:36" (1/1) ... [2023-11-23 20:28:36,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:28:36,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-23 20:28:36,765 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-23 20:28:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:28:36,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:36,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:36,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:28:36,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:28:36,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:28:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:36,960 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:28:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:28:37,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:28:37,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:28:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:28:37,057 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:28:37,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:28:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:28:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-23 20:28:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-23 20:28:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:28:37,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:28:37,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:28:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:28:37,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:28:37,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:28:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:37,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:28:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:37,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:28:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:28:37,734 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:28:37,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:28:37,737 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:28:37,786 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-23 20:28:37,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:28:37 ImpRootNode [2023-11-23 20:28:37,795 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:28:37,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:28:37,796 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:28:37,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:28:37,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:28:36" (3/4) ... [2023-11-23 20:28:37,800 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:28:37,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:28:37,803 INFO L158 Benchmark]: Toolchain (without parser) took 3521.07ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 69.2MB in the beginning and 85.4MB in the end (delta: -16.2MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,804 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:37,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1641.89ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 52.8MB in the end (delta: 16.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.92ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 49.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,808 INFO L158 Benchmark]: Boogie Preprocessor took 36.30ms. Allocated memory is still 96.5MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,815 INFO L158 Benchmark]: RCFGBuilder took 624.78ms. Allocated memory is still 96.5MB. Free memory was 47.7MB in the beginning and 60.8MB in the end (delta: -13.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,816 INFO L158 Benchmark]: CodeCheck took 1129.90ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 85.4MB in the end (delta: -25.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:28:37,818 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:28:37,829 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, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 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, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_10_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 \read(globalTrue) [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 \read(globalTrue) [L1569] data-- 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 0.65ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1641.89ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 52.8MB in the end (delta: 16.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.92ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 49.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.30ms. Allocated memory is still 96.5MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.78ms. Allocated memory is still 96.5MB. Free memory was 47.7MB in the beginning and 60.8MB in the end (delta: -13.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * CodeCheck took 1129.90ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 60.3MB in the beginning and 85.4MB in the end (delta: -25.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. 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: IdentifierExpression #t~post98 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:28:37,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3af46-82b7-4eca-9620-72fa458c8ebf/bin/ukojak-verify-1t5iHCbJaC/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