./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_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_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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_0e69e8d2-a118-429c-897a-a8fccac21972/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 afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:45:58,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:45:58,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 04:45:58,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:45:58,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:45:58,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:45:58,784 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:45:58,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:45:58,785 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:45:58,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:45:58,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:45:58,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:45:58,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:45:58,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:45:58,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:45:58,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:45:58,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:45:58,790 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:45:58,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:45:58,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:45:58,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:45:58,792 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:45:58,793 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:45:58,793 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:45:58,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:45:58,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:45:58,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:45:58,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:45:58,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:45:58,795 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:45:58,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:45:58,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:45:58,797 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_0e69e8d2-a118-429c-897a-a8fccac21972/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2023-12-03 04:45:59,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:45:59,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:45:59,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:45:59,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:45:59,044 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:45:59,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2023-12-03 04:46:01,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:46:02,099 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:46:02,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2023-12-03 04:46:02,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/7ec1dabe2/5d74f8c1bc9c42b5b1f16c96d0974d89/FLAGa29df5dde [2023-12-03 04:46:02,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/7ec1dabe2/5d74f8c1bc9c42b5b1f16c96d0974d89 [2023-12-03 04:46:02,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:46:02,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:46:02,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:46:02,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:46:02,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:46:02,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:46:02" (1/1) ... [2023-12-03 04:46:02,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4877c243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:02, skipping insertion in model container [2023-12-03 04:46:02,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:46:02" (1/1) ... [2023-12-03 04:46:02,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:46:02,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:46:02,895 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:46:02,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:46:03,045 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:03,045 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:03,045 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:03,045 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:03,046 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:03,051 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:46:03,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03 WrapperNode [2023-12-03 04:46:03,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:46:03,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:46:03,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:46:03,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:46:03,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,111 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-12-03 04:46:03,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:46:03,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:46:03,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:46:03,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:46:03,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:46:03,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:46:03,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:46:03,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:46:03,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:46:03,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:46:03,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:46:03,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 04:46:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:46:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:46:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:46:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:46:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 04:46:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:46:03,331 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:46:03,334 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:46:03,448 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:46:03,501 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:46:03,501 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 04:46:03,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:03 BoogieIcfgContainer [2023-12-03 04:46:03,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:46:03,503 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:46:03,504 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:46:03,513 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:46:03,513 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:03" (1/1) ... [2023-12-03 04:46:03,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:46:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-12-03 04:46:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-03 04:46:03,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:46:03,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:46:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:03,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:46:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:03,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:46:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:03,855 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 04:46:03,877 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 04:46:03,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:46:03 ImpRootNode [2023-12-03 04:46:03,882 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:46:03,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:46:03,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:46:03,883 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:46:03,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:03" (3/4) ... [2023-12-03 04:46:03,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:46:03,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:46:03,888 INFO L158 Benchmark]: Toolchain (without parser) took 1750.37ms. Allocated memory is still 148.9MB. Free memory was 102.0MB in the beginning and 94.6MB in the end (delta: 7.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,888 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:46:03,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 914.13ms. Allocated memory is still 148.9MB. Free memory was 101.6MB in the beginning and 75.4MB in the end (delta: 26.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.65ms. Allocated memory is still 148.9MB. Free memory was 75.4MB in the beginning and 72.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,890 INFO L158 Benchmark]: Boogie Preprocessor took 27.95ms. Allocated memory is still 148.9MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,891 INFO L158 Benchmark]: RCFGBuilder took 361.66ms. Allocated memory is still 148.9MB. Free memory was 70.6MB in the beginning and 114.4MB in the end (delta: -43.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,891 INFO L158 Benchmark]: CodeCheck took 379.07ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 94.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 04:46:03,892 INFO L158 Benchmark]: Witness Printer took 3.70ms. Allocated memory is still 148.9MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:46:03,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=27, argc=27, argv={28:26}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 914.13ms. Allocated memory is still 148.9MB. Free memory was 101.6MB in the beginning and 75.4MB in the end (delta: 26.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.65ms. Allocated memory is still 148.9MB. Free memory was 75.4MB in the beginning and 72.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.95ms. Allocated memory is still 148.9MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.66ms. Allocated memory is still 148.9MB. Free memory was 70.6MB in the beginning and 114.4MB in the end (delta: -43.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * CodeCheck took 379.07ms. Allocated memory is still 148.9MB. Free memory was 114.4MB in the beginning and 94.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.70ms. Allocated memory is still 148.9MB. Free memory is still 94.6MB. 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~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 04:46:03,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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_0e69e8d2-a118-429c-897a-a8fccac21972/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 afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:46:05,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:46:05,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 04:46:05,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:46:05,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:46:05,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:46:05,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:46:05,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:46:05,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:46:05,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:46:05,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:46:05,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:46:05,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:46:05,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:46:05,904 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:46:05,904 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:46:05,905 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:46:05,905 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:46:05,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:46:05,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:46:05,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:46:05,909 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:46:05,909 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:46:05,909 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:46:05,910 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:05,910 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:46:05,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:46:05,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:46:05,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:46:05,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:46:05,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:46:05,912 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:46:05,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:05,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:46:05,913 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:46:05,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:46:05,914 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_0e69e8d2-a118-429c-897a-a8fccac21972/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2023-12-03 04:46:06,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:46:06,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:46:06,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:46:06,243 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:46:06,244 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:46:06,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2023-12-03 04:46:09,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:46:09,375 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:46:09,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2023-12-03 04:46:09,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/67f6111fc/6d393236d24d4188918e7927450b9bde/FLAGd0b9c89f5 [2023-12-03 04:46:09,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/data/67f6111fc/6d393236d24d4188918e7927450b9bde [2023-12-03 04:46:09,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:46:09,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:46:09,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:46:09,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:46:09,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:46:09,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:46:09" (1/1) ... [2023-12-03 04:46:09,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6e04b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:09, skipping insertion in model container [2023-12-03 04:46:09,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:46:09" (1/1) ... [2023-12-03 04:46:09,471 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:46:10,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:46:10,197 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:46:10,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:46:10,388 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:10,388 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:10,388 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:10,389 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:10,389 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:46:10,395 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:46:10,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10 WrapperNode [2023-12-03 04:46:10,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:46:10,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:46:10,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:46:10,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:46:10,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,459 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2023-12-03 04:46:10,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:46:10,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:46:10,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:46:10,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:46:10,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:46:10,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:46:10,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:46:10,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:46:10,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:46:10,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:46:10,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:46:10,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:46:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 04:46:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 04:46:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 04:46:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:46:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:46:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:46:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:46:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:46:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:46:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 04:46:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 04:46:10,739 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:46:10,740 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:46:10,866 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:46:10,905 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:46:10,905 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 04:46:10,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:10 BoogieIcfgContainer [2023-12-03 04:46:10,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:46:10,907 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:46:10,908 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:46:10,917 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:46:10,917 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:10" (1/1) ... [2023-12-03 04:46:10,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:46:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-12-03 04:46:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-12-03 04:46:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:46:10,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:10,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:10,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:10,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:11,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:46:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:11,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:46:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:11,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:46:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:46:11,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:46:11,391 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 04:46:11,411 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 04:46:11,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:46:11 ImpRootNode [2023-12-03 04:46:11,421 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:46:11,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:46:11,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:46:11,422 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:46:11,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:46:10" (3/4) ... [2023-12-03 04:46:11,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 04:46:11,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:46:11,426 INFO L158 Benchmark]: Toolchain (without parser) took 2012.20ms. Allocated memory is still 113.2MB. Free memory was 85.6MB in the beginning and 56.1MB in the end (delta: 29.5MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,426 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:46:11,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 981.18ms. Allocated memory is still 113.2MB. Free memory was 85.6MB in the beginning and 50.1MB in the end (delta: 35.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.74ms. Allocated memory is still 113.2MB. Free memory was 50.1MB in the beginning and 46.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,428 INFO L158 Benchmark]: Boogie Preprocessor took 33.37ms. Allocated memory is still 113.2MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,428 INFO L158 Benchmark]: RCFGBuilder took 412.42ms. Allocated memory is still 113.2MB. Free memory was 44.6MB in the beginning and 74.2MB in the end (delta: -29.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,429 INFO L158 Benchmark]: CodeCheck took 513.46ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 56.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:46:11,429 INFO L158 Benchmark]: Witness Printer took 3.66ms. Allocated memory is still 113.2MB. Free memory was 56.5MB in the beginning and 56.1MB in the end (delta: 349.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:46:11,433 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 38.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 981.18ms. Allocated memory is still 113.2MB. Free memory was 85.6MB in the beginning and 50.1MB in the end (delta: 35.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.74ms. Allocated memory is still 113.2MB. Free memory was 50.1MB in the beginning and 46.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.37ms. Allocated memory is still 113.2MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 412.42ms. Allocated memory is still 113.2MB. Free memory was 44.6MB in the beginning and 74.2MB in the end (delta: -29.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * CodeCheck took 513.46ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 56.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.66ms. Allocated memory is still 113.2MB. Free memory was 56.5MB in the beginning and 56.1MB in the end (delta: 349.0kB). 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 04:46:11,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e69e8d2-a118-429c-897a-a8fccac21972/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