./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:41:02,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:41:02,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:41:02,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:41:02,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:41:02,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:41:02,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:41:02,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:41:02,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:41:02,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:41:02,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:41:02,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:41:02,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:41:02,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:41:02,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:41:02,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:41:02,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:41:02,480 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:41:02,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:41:02,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:41:02,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:41:02,482 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:41:02,482 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:41:02,483 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:41:02,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:41:02,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:02,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:41:02,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:41:02,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:41:02,485 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:41:02,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:41:02,486 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:41:02,486 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_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2023-12-03 03:41:02,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:41:02,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:41:02,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:41:02,723 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:41:02,724 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:41:02,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2023-12-03 03:41:05,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:41:05,771 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:41:05,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2023-12-03 03:41:05,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/f57a4f3e6/f79349a72188451cab49716cdccb88d7/FLAG508dfb503 [2023-12-03 03:41:05,806 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/f57a4f3e6/f79349a72188451cab49716cdccb88d7 [2023-12-03 03:41:05,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:41:05,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:41:05,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:05,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:41:05,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:41:05,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:05" (1/1) ... [2023-12-03 03:41:05,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149d1e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:05, skipping insertion in model container [2023-12-03 03:41:05,826 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:05" (1/1) ... [2023-12-03 03:41:05,878 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:41:06,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:06,666 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:41:06,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:06,903 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:06,903 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:06,903 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:06,903 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:06,904 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:06,911 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:41:06,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06 WrapperNode [2023-12-03 03:41:06,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:06,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:06,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:41:06,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:41:06,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,969 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-12-03 03:41:06,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:06,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:41:06,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:41:06,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:41:06,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,990 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:06,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:41:06,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:41:06,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:41:07,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:41:07,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:06" (1/1) ... [2023-12-03 03:41:07,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:41:07,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:41:07,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:41:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:41:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:41:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:41:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:41:07,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:41:07,196 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:41:07,198 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:41:07,306 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:41:07,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:41:07,346 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:41:07,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:07 BoogieIcfgContainer [2023-12-03 03:41:07,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:41:07,349 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:41:07,349 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:41:07,356 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:41:07,356 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:07" (1/1) ... [2023-12-03 03:41:07,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:41:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:41:07,407 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:41:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:41:07,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:07,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:07,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:41:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:07,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:41:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:07,679 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:41:07,700 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 03:41:07,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:41:07 ImpRootNode [2023-12-03 03:41:07,705 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:41:07,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:41:07,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:41:07,706 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:41:07,706 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:07" (3/4) ... [2023-12-03 03:41:07,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:41:07,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:41:07,710 INFO L158 Benchmark]: Toolchain (without parser) took 1891.37ms. Allocated memory is still 157.3MB. Free memory was 114.3MB in the beginning and 112.6MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:41:07,710 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:07,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1092.45ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 90.1MB in the end (delta: 23.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-12-03 03:41:07,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.07ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 87.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:41:07,712 INFO L158 Benchmark]: Boogie Preprocessor took 28.13ms. Allocated memory is still 157.3MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:41:07,713 INFO L158 Benchmark]: RCFGBuilder took 348.70ms. Allocated memory is still 157.3MB. Free memory was 85.1MB in the beginning and 70.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 03:41:07,713 INFO L158 Benchmark]: CodeCheck took 356.15ms. Allocated memory is still 157.3MB. Free memory was 70.5MB in the beginning and 112.6MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:07,714 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 157.3MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:07,717 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563, overapproximation of large string literal at line 1575. 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); [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=31, argc=31, argv={32:30}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] EXPR data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559-L1569] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1570] CALL badSink(data) [L1551] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 107.0MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1092.45ms. Allocated memory is still 157.3MB. Free memory was 113.9MB in the beginning and 90.1MB in the end (delta: 23.8MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.07ms. Allocated memory is still 157.3MB. Free memory was 90.1MB in the beginning and 87.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.13ms. Allocated memory is still 157.3MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.70ms. Allocated memory is still 157.3MB. Free memory was 85.1MB in the beginning and 70.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 356.15ms. Allocated memory is still 157.3MB. Free memory was 70.5MB in the beginning and 112.6MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 157.3MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 03:41:07,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:41:09,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:41:09,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 03:41:09,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:41:09,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:41:09,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:41:09,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:41:09,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:41:09,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:41:09,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:41:09,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:41:09,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:41:09,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:41:09,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:41:09,767 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:41:09,768 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:41:09,768 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:41:09,769 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:41:09,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:41:09,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:41:09,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:41:09,771 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:41:09,772 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:41:09,772 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:41:09,772 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:41:09,773 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:41:09,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:41:09,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:09,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:41:09,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:41:09,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:41:09,776 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:41:09,776 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:41:09,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:41:09,777 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:41:09,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:41:09,777 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_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2023-12-03 03:41:10,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:41:10,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:41:10,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:41:10,098 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:41:10,098 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:41:10,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2023-12-03 03:41:12,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:41:13,231 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:41:13,231 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2023-12-03 03:41:13,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/1a0cb8234/7b35fc7c7d8f41a09b92a5500373aec5/FLAG184e5438f [2023-12-03 03:41:13,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/data/1a0cb8234/7b35fc7c7d8f41a09b92a5500373aec5 [2023-12-03 03:41:13,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:41:13,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:41:13,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:13,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:41:13,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:41:13,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:13" (1/1) ... [2023-12-03 03:41:13,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bda4d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:13, skipping insertion in model container [2023-12-03 03:41:13,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:13" (1/1) ... [2023-12-03 03:41:13,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:41:14,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:14,131 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:41:14,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:14,310 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:14,311 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:14,311 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:14,311 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:14,311 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:41:14,317 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:41:14,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14 WrapperNode [2023-12-03 03:41:14,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:14,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:14,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:41:14,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:41:14,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,376 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-12-03 03:41:14,377 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:14,378 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:41:14,378 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:41:14,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:41:14,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:41:14,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:41:14,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:41:14,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:41:14,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:14,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:41:14,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:41:14,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:41:14,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:41:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:41:14,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:41:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:41:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:41:14,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 03:41:14,628 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:41:14,630 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:41:14,749 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:41:14,791 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:41:14,791 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:41:14,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:14 BoogieIcfgContainer [2023-12-03 03:41:14,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:41:14,794 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:41:14,794 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:41:14,801 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:41:14,801 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:14" (1/1) ... [2023-12-03 03:41:14,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:41:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:41:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:41:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:41:14,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:14,872 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:41:14,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:41:14,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:41:14,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:41:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:15,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:41:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:15,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:41:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:41:15,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:41:15,302 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:41:15,322 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 03:41:15,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:41:15 ImpRootNode [2023-12-03 03:41:15,326 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:41:15,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:41:15,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:41:15,327 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:41:15,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:14" (3/4) ... [2023-12-03 03:41:15,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:41:15,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:41:15,331 INFO L158 Benchmark]: Toolchain (without parser) took 2054.43ms. Allocated memory is still 107.0MB. Free memory was 79.8MB in the beginning and 62.0MB in the end (delta: 17.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-12-03 03:41:15,331 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:15,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1040.08ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 70.8MB in the end (delta: 8.8MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-12-03 03:41:15,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.36ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 67.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:41:15,333 INFO L158 Benchmark]: Boogie Preprocessor took 34.61ms. Allocated memory is still 107.0MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:41:15,334 INFO L158 Benchmark]: RCFGBuilder took 380.13ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 47.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:41:15,334 INFO L158 Benchmark]: CodeCheck took 532.56ms. Allocated memory is still 107.0MB. Free memory was 47.7MB in the beginning and 62.0MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:15,335 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 107.0MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:41:15,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1563, overapproximation of large string literal at line 1575. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] EXPR data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559-L1569] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1570] CALL badSink(data) [L1551] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1040.08ms. Allocated memory is still 107.0MB. Free memory was 79.5MB in the beginning and 70.8MB in the end (delta: 8.8MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.36ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 67.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.61ms. Allocated memory is still 107.0MB. Free memory was 67.6MB in the beginning and 65.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.13ms. Allocated memory is still 107.0MB. Free memory was 65.5MB in the beginning and 47.7MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 532.56ms. Allocated memory is still 107.0MB. Free memory was 47.7MB in the beginning and 62.0MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 107.0MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 03:41:15,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3cd56e7-0a62-4667-b4f3-cda3d3de9787/bin/ukojak-verify-Qdu7aM0XO9/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample