./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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_77200908-7a91-40e4-8731-7a7370efd980/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 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:02:31,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:02:32,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:02:32,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:02:32,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:02:32,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:02:32,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:02:32,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:02:32,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:02:32,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:02:32,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:02:32,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:02:32,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:02:32,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:02:32,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:02:32,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:02:32,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:02:32,102 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:02:32,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:02:32,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:02:32,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:02:32,106 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:02:32,107 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:02:32,107 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:02:32,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:02:32,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:32,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:02:32,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:02:32,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:02:32,111 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:02:32,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:02:32,113 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:02:32,113 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_77200908-7a91-40e4-8731-7a7370efd980/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2023-11-23 20:02:32,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:02:32,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:02:32,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:02:32,537 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:02:32,538 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:02:32,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-23 20:02:36,542 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:02:37,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:02:37,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-23 20:02:37,146 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/301b6657c/e8bdb19830f74cde9b87faf1c21b553a/FLAGcb94c5bd4 [2023-11-23 20:02:37,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/301b6657c/e8bdb19830f74cde9b87faf1c21b553a [2023-11-23 20:02:37,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:02:37,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:02:37,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:37,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:02:37,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:02:37,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:37" (1/1) ... [2023-11-23 20:02:37,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19abf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:37, skipping insertion in model container [2023-11-23 20:02:37,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:37" (1/1) ... [2023-11-23 20:02:37,279 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:02:37,841 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:38,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:38,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:02:38,682 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:38,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:39,044 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,044 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,045 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,045 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,045 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,046 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:39,056 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:02:39,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39 WrapperNode [2023-11-23 20:02:39,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:39,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:39,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:02:39,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:02:39,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,186 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2023-11-23 20:02:39,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:39,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:02:39,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:02:39,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:02:39,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:02:39,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:02:39,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:02:39,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:02:39,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:02:39,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:02:39,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:02:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:02:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:02:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:02:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:02:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:02:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:02:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:02:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:02:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:02:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:02:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:02:39,570 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:02:39,573 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:02:39,729 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:02:39,777 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:02:39,777 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:02:39,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:39 BoogieIcfgContainer [2023-11-23 20:02:39,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:02:39,781 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:02:39,781 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:02:39,794 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:02:39,794 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:39" (1/1) ... [2023-11-23 20:02:39,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:02:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:39,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:02:39,873 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:02:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:02:39,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:39,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:40,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:40,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:40,232 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:02:40,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:02:40 ImpRootNode [2023-11-23 20:02:40,267 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:02:40,268 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:02:40,268 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:02:40,269 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:02:40,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:39" (3/4) ... [2023-11-23 20:02:40,272 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:02:40,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:02:40,275 INFO L158 Benchmark]: Toolchain (without parser) took 3096.66ms. Allocated memory is still 153.1MB. Free memory was 111.7MB in the beginning and 72.8MB in the end (delta: 38.9MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,276 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 123.7MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:02:40,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1878.01ms. Allocated memory is still 153.1MB. Free memory was 111.7MB in the beginning and 110.5MB in the end (delta: 1.2MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.53ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,278 INFO L158 Benchmark]: Boogie Preprocessor took 39.73ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,279 INFO L158 Benchmark]: RCFGBuilder took 551.21ms. Allocated memory is still 153.1MB. Free memory was 105.4MB in the beginning and 90.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,280 INFO L158 Benchmark]: CodeCheck took 486.59ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 72.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:02:40,281 INFO L158 Benchmark]: Witness Printer took 5.69ms. Allocated memory is still 153.1MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:02:40,285 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. 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); [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 123.7MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1878.01ms. Allocated memory is still 153.1MB. Free memory was 111.7MB in the beginning and 110.5MB in the end (delta: 1.2MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.53ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.73ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.21ms. Allocated memory is still 153.1MB. Free memory was 105.4MB in the beginning and 90.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 486.59ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 72.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.69ms. Allocated memory is still 153.1MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:02:40,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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 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_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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_77200908-7a91-40e4-8731-7a7370efd980/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 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:02:43,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:02:43,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:02:43,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:02:43,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:02:43,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:02:43,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:02:43,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:02:43,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:02:43,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:02:43,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:02:43,896 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:02:43,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:02:43,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:02:43,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:02:43,900 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:02:43,900 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:02:43,901 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:02:43,901 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:02:43,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:02:43,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:02:43,905 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:02:43,905 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:02:43,906 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:02:43,906 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:43,907 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:02:43,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:02:43,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:43,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:02:43,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:02:43,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:02:43,911 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:02:43,912 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:43,912 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:02:43,913 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:02:43,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:02:43,913 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_77200908-7a91-40e4-8731-7a7370efd980/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2023-11-23 20:02:44,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:02:44,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:02:44,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:02:44,527 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:02:44,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:02:44,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-23 20:02:48,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:02:48,606 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:02:48,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-23 20:02:48,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/06fbe83b9/38ac959b35524ab2919b339c35d6ab71/FLAG88187141f [2023-11-23 20:02:48,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/data/06fbe83b9/38ac959b35524ab2919b339c35d6ab71 [2023-11-23 20:02:48,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:02:48,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:02:48,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:48,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:02:48,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:02:48,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:48" (1/1) ... [2023-11-23 20:02:48,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c62264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:48, skipping insertion in model container [2023-11-23 20:02:48,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:48" (1/1) ... [2023-11-23 20:02:48,817 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:02:49,281 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:49,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:49,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:02:49,972 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:02:50,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:50,253 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,253 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,253 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,254 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,254 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,254 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:02:50,262 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:02:50,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50 WrapperNode [2023-11-23 20:02:50,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:50,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:50,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:02:50,266 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:02:50,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,355 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2023-11-23 20:02:50,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:50,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:02:50,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:02:50,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:02:50,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,384 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:02:50,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:02:50,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:02:50,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:02:50,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:50" (1/1) ... [2023-11-23 20:02:50,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:50,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:02:50,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:02:50,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:02:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:02:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:02:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:02:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:02:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:02:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:02:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:02:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:02:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:02:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:02:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:02:50,798 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:02:50,801 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:02:51,004 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:02:51,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:02:51,046 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:02:51,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:51 BoogieIcfgContainer [2023-11-23 20:02:51,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:02:51,049 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:02:51,049 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:02:51,060 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:02:51,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:51" (1/1) ... [2023-11-23 20:02:51,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:02:51,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:51,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-23 20:02:51,128 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-23 20:02:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:02:51,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:51,133 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:02:51,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:02:51,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:02:51,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:02:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:51,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:51,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:51,715 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:02:51,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:02:51,718 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:02:51,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:02:51 ImpRootNode [2023-11-23 20:02:51,760 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:02:51,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:02:51,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:02:51,763 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:02:51,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:51" (3/4) ... [2023-11-23 20:02:51,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:02:51,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:02:51,768 INFO L158 Benchmark]: Toolchain (without parser) took 3087.50ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 59.0MB in the beginning and 60.1MB in the end (delta: -1.1MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,769 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 83.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:02:51,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.58ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 58.9MB in the beginning and 66.6MB in the end (delta: -7.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.41ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 63.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,773 INFO L158 Benchmark]: Boogie Preprocessor took 39.51ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,774 INFO L158 Benchmark]: RCFGBuilder took 651.51ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 77.7MB in the end (delta: -16.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,774 INFO L158 Benchmark]: CodeCheck took 711.10ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 60.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,780 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 60.1MB in the end (delta: 629.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:51,788 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 86.0MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 83.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.58ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 58.9MB in the beginning and 66.6MB in the end (delta: -7.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.41ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 63.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.51ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 61.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.51ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 77.7MB in the end (delta: -16.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * CodeCheck took 711.10ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 60.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 117.4MB. Free memory was 60.8MB in the beginning and 60.1MB in the end (delta: 629.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:02:51,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77200908-7a91-40e4-8731-7a7370efd980/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