./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2 --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 e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:48:35,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:48:35,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:48:35,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:48:35,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:48:35,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:48:35,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:48:35,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:48:35,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:48:35,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:48:35,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:48:35,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:48:35,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:48:35,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:48:35,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:48:35,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:48:35,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:48:35,482 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:48:35,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:48:35,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:48:35,483 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:48:35,484 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:48:35,485 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:48:35,485 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:48:35,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:48:35,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:35,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:48:35,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:48:35,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:48:35,488 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:48:35,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:48:35,490 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:48:35,490 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_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe [2023-11-21 18:48:35,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:48:35,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:48:35,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:48:35,807 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:48:35,807 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:48:35,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-11-21 18:48:38,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:48:39,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:48:39,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-11-21 18:48:39,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/7aa8005cf/f883a48e8df443f8b29010321193697a/FLAG2f8963e0b [2023-11-21 18:48:39,343 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/7aa8005cf/f883a48e8df443f8b29010321193697a [2023-11-21 18:48:39,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:48:39,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:48:39,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:39,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:48:39,354 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:48:39,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:39" (1/1) ... [2023-11-21 18:48:39,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8d710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:39, skipping insertion in model container [2023-11-21 18:48:39,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:39" (1/1) ... [2023-11-21 18:48:39,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:48:39,947 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:40,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:40,588 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:48:40,609 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:40,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:40,884 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,884 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,884 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,885 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,885 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,885 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:40,894 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:48:40,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40 WrapperNode [2023-11-21 18:48:40,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:40,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:40,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:48:40,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:48:40,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:40,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,005 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-21 18:48:41,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:41,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:48:41,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:48:41,007 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:48:41,018 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:48:41,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:48:41,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:48:41,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:48:41,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:40" (1/1) ... [2023-11-21 18:48:41,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:48:41,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:48:41,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:48:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:48:41,119 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:48:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:48:41,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:48:41,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:48:41,265 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:48:41,268 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:48:41,395 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:48:41,437 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:48:41,437 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:48:41,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:41 BoogieIcfgContainer [2023-11-21 18:48:41,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:48:41,440 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:48:41,440 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:48:41,458 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:48:41,459 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:41" (1/1) ... [2023-11-21 18:48:41,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:48:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-21 18:48:41,531 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-21 18:48:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:48:41,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:41,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:48:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 23 transitions. [2023-11-21 18:48:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-21 18:48:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:48:41,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:48:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:42,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:42,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:42,250 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:48:42,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:48:42 ImpRootNode [2023-11-21 18:48:42,295 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:48:42,296 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:48:42,296 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:48:42,296 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:48:42,297 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:41" (3/4) ... [2023-11-21 18:48:42,299 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:48:42,300 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:48:42,301 INFO L158 Benchmark]: Toolchain (without parser) took 2953.59ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.9MB in the beginning and 99.5MB in the end (delta: -11.6MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-21 18:48:42,302 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 179.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:42,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1547.24ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.9MB in the beginning and 95.5MB in the end (delta: -7.6MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2023-11-21 18:48:42,303 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.79ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 92.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:48:42,304 INFO L158 Benchmark]: Boogie Preprocessor took 43.03ms. Allocated memory is still 146.8MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:42,305 INFO L158 Benchmark]: RCFGBuilder took 389.40ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 75.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:48:42,305 INFO L158 Benchmark]: CodeCheck took 855.39ms. Allocated memory is still 146.8MB. Free memory was 75.9MB in the beginning and 100.5MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:42,306 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 146.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:42,312 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 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, 17 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 69 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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: 1570]: 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)=13, argc=13, argv={12:29}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_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=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.34ms. Allocated memory is still 100.7MB. Free memory was 55.8MB in the beginning and 55.6MB in the end (delta: 179.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1547.24ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.9MB in the beginning and 95.5MB in the end (delta: -7.6MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.79ms. Allocated memory is still 146.8MB. Free memory was 95.5MB in the beginning and 92.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.03ms. Allocated memory is still 146.8MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.40ms. Allocated memory is still 146.8MB. Free memory was 90.6MB in the beginning and 75.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 855.39ms. Allocated memory is still 146.8MB. Free memory was 75.9MB in the beginning and 100.5MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 146.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:48:42,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/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_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2 --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 e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:48:45,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:48:45,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:48:45,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:48:45,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:48:45,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:48:45,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:48:45,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:48:45,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:48:45,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:48:45,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:48:45,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:48:45,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:48:45,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:48:45,337 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:48:45,337 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:48:45,338 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:48:45,338 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:48:45,339 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:48:45,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:48:45,340 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:48:45,347 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:48:45,348 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:48:45,348 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:48:45,349 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:45,349 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:48:45,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:48:45,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:45,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:48:45,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:48:45,353 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:48:45,353 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:48:45,354 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:45,354 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:48:45,355 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:48:45,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:48:45,355 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_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe [2023-11-21 18:48:45,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:48:45,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:48:45,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:48:45,831 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:48:45,832 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:48:45,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-11-21 18:48:49,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:48:49,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:48:49,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-11-21 18:48:49,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/2d2566a54/f5aecceed4e04381a3615a62e2940230/FLAG5a3a53b93 [2023-11-21 18:48:49,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/data/2d2566a54/f5aecceed4e04381a3615a62e2940230 [2023-11-21 18:48:49,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:48:49,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:48:49,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:49,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:48:49,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:48:49,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:49" (1/1) ... [2023-11-21 18:48:49,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59baf77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:49, skipping insertion in model container [2023-11-21 18:48:49,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:48:49" (1/1) ... [2023-11-21 18:48:49,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:48:50,132 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:50,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:50,829 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:48:50,852 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:48:50,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:48:51,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,076 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,076 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,076 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,077 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,077 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:48:51,085 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:48:51,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51 WrapperNode [2023-11-21 18:48:51,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:48:51,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:51,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:48:51,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:48:51,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,164 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-21 18:48:51,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:48:51,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:48:51,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:48:51,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:48:51,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:48:51,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:48:51,206 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:48:51,206 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:48:51,207 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:48:51,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:48:51,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:48:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:48:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:48:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:48:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:48:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:48:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:48:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:48:51,476 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:48:51,478 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:48:51,682 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:48:51,767 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:48:51,767 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:48:51,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:51 BoogieIcfgContainer [2023-11-21 18:48:51,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:48:51,770 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:48:51,770 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:48:51,781 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:48:51,782 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:51" (1/1) ... [2023-11-21 18:48:51,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:48:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-21 18:48:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-21 18:48:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:48:51,878 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:51,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:48:51,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:48:51,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:48:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:52,081 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:48:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:48:52,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:48:52,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:48:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:48:52,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:48:52,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:48:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-21 18:48:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 18:48:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:48:52,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:48:52,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:48:52,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:48:52,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:48:52,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:48:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:52,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:52,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:48:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:48:52,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:48:52,704 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:48:52,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:48:52 ImpRootNode [2023-11-21 18:48:52,749 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:48:52,750 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:48:52,750 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:48:52,750 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:48:52,751 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:48:51" (3/4) ... [2023-11-21 18:48:52,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:48:52,754 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:48:52,755 INFO L158 Benchmark]: Toolchain (without parser) took 3241.91ms. Allocated memory is still 102.8MB. Free memory was 81.9MB in the beginning and 52.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-21 18:48:52,756 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 59.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:52,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1569.89ms. Allocated memory is still 102.8MB. Free memory was 81.6MB in the beginning and 70.1MB in the end (delta: 11.6MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-11-21 18:48:52,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.39ms. Allocated memory is still 102.8MB. Free memory was 70.1MB in the beginning and 66.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:48:52,758 INFO L158 Benchmark]: Boogie Preprocessor took 38.73ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:48:52,763 INFO L158 Benchmark]: RCFGBuilder took 563.78ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 48.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:48:52,764 INFO L158 Benchmark]: CodeCheck took 979.44ms. Allocated memory is still 102.8MB. Free memory was 48.0MB in the beginning and 52.5MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:52,765 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 102.8MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:48:52,772 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 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, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 66 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, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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: 1570]: 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_multiply_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) 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] [L1568] COND TRUE data < 0 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] [L1570] data * 2 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 0.64ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 59.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1569.89ms. Allocated memory is still 102.8MB. Free memory was 81.6MB in the beginning and 70.1MB in the end (delta: 11.6MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.39ms. Allocated memory is still 102.8MB. Free memory was 70.1MB in the beginning and 66.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.73ms. Allocated memory is still 102.8MB. Free memory was 66.9MB in the beginning and 64.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 563.78ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 48.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 979.44ms. Allocated memory is still 102.8MB. Free memory was 48.0MB in the beginning and 52.5MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 102.8MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:48:52,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24199fe4-17e9-4d03-9fb1-9a8c04f12282/bin/ukojak-verify-i0I2FZA1j2/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