./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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_7c5ca387-540b-4cf0-b65a-40deddf07033/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 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:58:51,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:58:51,298 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:58:51,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:58:51,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:58:51,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:58:51,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:58:51,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:58:51,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:58:51,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:58:51,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:58:51,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:58:51,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:58:51,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:58:51,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:58:51,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:58:51,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:58:51,331 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:58:51,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:58:51,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:58:51,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:58:51,333 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:58:51,334 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:58:51,334 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:58:51,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:58:51,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:58:51,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:58:51,337 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:58:51,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:58:51,338 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:58:51,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:58:51,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:58:51,339 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_7c5ca387-540b-4cf0-b65a-40deddf07033/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2023-12-03 01:58:51,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:58:51,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:58:51,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:58:51,569 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:58:51,569 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:58:51,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2023-12-03 01:58:54,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:58:54,641 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:58:54,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2023-12-03 01:58:54,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/5fa201fc1/5e332f549b2449d3a6ac60dc8e3e40eb/FLAG34dd874c9 [2023-12-03 01:58:54,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/5fa201fc1/5e332f549b2449d3a6ac60dc8e3e40eb [2023-12-03 01:58:54,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:58:54,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:58:54,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:58:54,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:58:54,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:58:54,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:58:54" (1/1) ... [2023-12-03 01:58:54,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b337ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:54, skipping insertion in model container [2023-12-03 01:58:54,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:58:54" (1/1) ... [2023-12-03 01:58:54,756 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:58:55,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:58:55,493 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:58:55,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:58:55,700 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:58:55,700 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:58:55,700 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:58:55,700 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:58:55,701 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:58:55,708 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:58:55,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55 WrapperNode [2023-12-03 01:58:55,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:58:55,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:58:55,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:58:55,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:58:55,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,769 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-12-03 01:58:55,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:58:55,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:58:55,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:58:55,771 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:58:55,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:58:55,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:58:55,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:58:55,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:58:55,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:58:55" (1/1) ... [2023-12-03 01:58:55,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:58:55,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:58:55,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:58:55,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:58:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:58:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:58:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:58:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:58:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 01:58:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:58:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:58:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:58:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:58:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:58:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:58:56,003 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:58:56,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:58:56,116 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:58:56,153 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:58:56,153 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:58:56,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:58:56 BoogieIcfgContainer [2023-12-03 01:58:56,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:58:56,156 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:58:56,156 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:58:56,163 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:58:56,163 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:58:56" (1/1) ... [2023-12-03 01:58:56,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:58:56,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:58:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:58:56,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:58:56,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:56,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:58:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:58:56,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:58:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:58:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:58:56,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:58:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:58:56,474 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:58:56,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 01:58:56,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:58:56 ImpRootNode [2023-12-03 01:58:56,500 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:58:56,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:58:56,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:58:56,501 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:58:56,501 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:58:56" (3/4) ... [2023-12-03 01:58:56,504 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:58:56,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:58:56,506 INFO L158 Benchmark]: Toolchain (without parser) took 1824.82ms. Allocated memory is still 178.3MB. Free memory was 135.0MB in the beginning and 93.0MB in the end (delta: 42.0MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,506 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:58:56,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1026.87ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 130.9MB in the end (delta: 3.3MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,508 INFO L158 Benchmark]: Boogie Preprocessor took 26.95ms. Allocated memory is still 178.3MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,509 INFO L158 Benchmark]: RCFGBuilder took 357.12ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 111.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,510 INFO L158 Benchmark]: CodeCheck took 344.23ms. Allocated memory is still 178.3MB. Free memory was 111.0MB in the beginning and 93.0MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 01:58:56,510 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 178.3MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:58:56,514 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572. 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); [L1572] 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) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={19:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { 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] [L1564] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1026.87ms. Allocated memory is still 178.3MB. Free memory was 134.2MB in the beginning and 130.9MB in the end (delta: 3.3MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 178.3MB. Free memory was 130.9MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.95ms. Allocated memory is still 178.3MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 357.12ms. Allocated memory is still 178.3MB. Free memory was 125.7MB in the beginning and 111.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 344.23ms. Allocated memory is still 178.3MB. Free memory was 111.0MB in the beginning and 93.0MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 178.3MB. Free memory is still 93.0MB. 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~nondet103 - 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 01:58:56,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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_7c5ca387-540b-4cf0-b65a-40deddf07033/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 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:58:58,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:58:58,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 01:58:58,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:58:58,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:58:58,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:58:58,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:58:58,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:58:58,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:58:58,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:58:58,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:58:58,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:58:58,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:58:58,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:58:58,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:58:58,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:58:58,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:58:58,589 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:58:58,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:58:58,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:58:58,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:58:58,591 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:58:58,592 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:58:58,592 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:58:58,593 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:58,593 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:58:58,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:58:58,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:58:58,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:58:58,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:58:58,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:58:58,596 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:58:58,596 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:58,596 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:58:58,597 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:58:58,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:58:58,597 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_7c5ca387-540b-4cf0-b65a-40deddf07033/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d4862d1e021c6f27fd082386c99ae619808ceb8dea878e9ba633e95f35399d2 [2023-12-03 01:58:58,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:58:58,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:58:58,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:58:58,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:58:58,952 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:58:58,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2023-12-03 01:59:01,701 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:59:02,022 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:59:02,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_01_bad.i [2023-12-03 01:59:02,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/a9dfa022c/581383eee37f4abd9ba30684f28d7bdd/FLAG89ce86ad1 [2023-12-03 01:59:02,059 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/data/a9dfa022c/581383eee37f4abd9ba30684f28d7bdd [2023-12-03 01:59:02,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:59:02,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:59:02,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:02,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:59:02,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:59:02,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:02" (1/1) ... [2023-12-03 01:59:02,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d5a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:02, skipping insertion in model container [2023-12-03 01:59:02,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:02" (1/1) ... [2023-12-03 01:59:02,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:59:02,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:02,905 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:59:02,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:03,101 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:03,101 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:03,102 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:03,102 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:03,102 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:03,108 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:59:03,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03 WrapperNode [2023-12-03 01:59:03,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:03,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:03,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:59:03,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:59:03,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,167 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-12-03 01:59:03,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:03,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:59:03,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:59:03,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:59:03,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:59:03,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:59:03,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:59:03,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:59:03,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:59:03,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:59:03,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:59:03,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:59:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:59:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:59:03,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:59:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:59:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:59:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 01:59:03,424 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:59:03,426 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:59:03,569 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:59:03,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:59:03,608 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:59:03,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:03 BoogieIcfgContainer [2023-12-03 01:59:03,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:59:03,611 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:59:03,611 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:59:03,621 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:59:03,621 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:03" (1/1) ... [2023-12-03 01:59:03,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:59:03,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:59:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:59:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:59:03,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:03,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:03,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:59:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:59:03,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:59:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:59:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:59:04,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:59:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:59:04,182 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:59:04,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:59:04,187 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:59:04,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 01:59:04,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:59:04 ImpRootNode [2023-12-03 01:59:04,215 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:59:04,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:59:04,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:59:04,216 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:59:04,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:59:03" (3/4) ... [2023-12-03 01:59:04,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:59:04,220 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:59:04,221 INFO L158 Benchmark]: Toolchain (without parser) took 2157.23ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 54.4MB in the beginning and 66.3MB in the end (delta: -11.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,221 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:59:04,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1044.33ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 54.2MB in the beginning and 73.2MB in the end (delta: -19.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.76ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,223 INFO L158 Benchmark]: Boogie Preprocessor took 34.68ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,224 INFO L158 Benchmark]: RCFGBuilder took 407.25ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 83.8MB in the end (delta: -15.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,225 INFO L158 Benchmark]: CodeCheck took 603.59ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 67.0MB in the end (delta: 16.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 01:59:04,225 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.3MB in the end (delta: 635.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:59:04,229 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1572. 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); [L1572] 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) [L1572] 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] [L1573] CALL CWE191_Integer_Underflow__int_fgets_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { 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] [L1564] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 81.8MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1044.33ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 54.2MB in the beginning and 73.2MB in the end (delta: -19.0MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.76ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.68ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 68.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.25ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 83.8MB in the end (delta: -15.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * CodeCheck took 603.59ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 67.0MB in the end (delta: 16.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.3MB in the end (delta: 635.2kB). 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~nondet101 - 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 01:59:04,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ca387-540b-4cf0-b65a-40deddf07033/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample