./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:18:28,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:18:29,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:18:29,058 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:18:29,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:18:29,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:18:29,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:18:29,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:18:29,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:18:29,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:18:29,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:18:29,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:18:29,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:18:29,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:18:29,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:18:29,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:18:29,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:18:29,121 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:18:29,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:18:29,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:18:29,122 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:18:29,124 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:18:29,124 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:18:29,125 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:18:29,125 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:18:29,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:29,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:18:29,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:18:29,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:18:29,128 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:18:29,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:18:29,130 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:18:29,130 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_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2023-11-24 22:18:29,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:18:29,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:18:29,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:18:29,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:18:29,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:18:29,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-24 22:18:32,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:18:33,077 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:18:33,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-24 22:18:33,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/22be53579/97a884a4bf684e25830a48ebc13a6b18/FLAG623cbb7b5 [2023-11-24 22:18:33,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/22be53579/97a884a4bf684e25830a48ebc13a6b18 [2023-11-24 22:18:33,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:18:33,146 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:18:33,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:33,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:18:33,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:18:33,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:33" (1/1) ... [2023-11-24 22:18:33,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b7d507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:33, skipping insertion in model container [2023-11-24 22:18:33,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:33" (1/1) ... [2023-11-24 22:18:33,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:18:34,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:34,309 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:18:34,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:34,631 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:34,631 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:34,631 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:34,631 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:34,632 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:34,640 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:18:34,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34 WrapperNode [2023-11-24 22:18:34,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:34,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:34,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:18:34,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:18:34,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,728 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-24 22:18:34,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:34,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:18:34,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:18:34,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:18:34,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:18:34,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:18:34,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:18:34,762 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:18:34,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:34" (1/1) ... [2023-11-24 22:18:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:34,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:18:34,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:18:34,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:18:34,843 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:18:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:18:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:18:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:18:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 22:18:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:18:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:18:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:18:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:18:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:18:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:18:35,009 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:18:35,012 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:18:35,166 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:18:35,222 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:18:35,222 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:18:35,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:35 BoogieIcfgContainer [2023-11-24 22:18:35,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:18:35,225 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:18:35,225 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:18:35,237 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:18:35,237 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:35" (1/1) ... [2023-11-24 22:18:35,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:18:35,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:35,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-24 22:18:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-24 22:18:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:18:35,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:35,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:18:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:35,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:18:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:35,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:18:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:35,677 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:18:35,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-24 22:18:35,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:18:35 ImpRootNode [2023-11-24 22:18:35,714 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:18:35,715 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:18:35,716 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:18:35,716 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:18:35,716 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:35" (3/4) ... [2023-11-24 22:18:35,719 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:18:35,720 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:18:35,721 INFO L158 Benchmark]: Toolchain (without parser) took 2574.70ms. Allocated memory is still 148.9MB. Free memory was 102.8MB in the beginning and 98.9MB in the end (delta: 4.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:35,721 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 76.9MB in the beginning and 76.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:35,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1490.23ms. Allocated memory is still 148.9MB. Free memory was 102.8MB in the beginning and 77.0MB in the end (delta: 25.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:35,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.12ms. Allocated memory is still 148.9MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:35,723 INFO L158 Benchmark]: Boogie Preprocessor took 30.28ms. Allocated memory is still 148.9MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:35,724 INFO L158 Benchmark]: RCFGBuilder took 463.27ms. Allocated memory is still 148.9MB. Free memory was 72.8MB in the beginning and 57.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:18:35,724 INFO L158 Benchmark]: CodeCheck took 489.34ms. Allocated memory is still 148.9MB. Free memory was 57.3MB in the beginning and 99.8MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:35,725 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 98.9MB in the end (delta: 923.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:35,729 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-1073741825, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 76.9MB in the beginning and 76.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1490.23ms. Allocated memory is still 148.9MB. Free memory was 102.8MB in the beginning and 77.0MB in the end (delta: 25.8MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.12ms. Allocated memory is still 148.9MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.28ms. Allocated memory is still 148.9MB. Free memory was 74.1MB in the beginning and 72.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.27ms. Allocated memory is still 148.9MB. Free memory was 72.8MB in the beginning and 57.3MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 489.34ms. Allocated memory is still 148.9MB. Free memory was 57.3MB in the beginning and 99.8MB in the end (delta: -42.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 98.9MB in the end (delta: 923.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:18:35,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/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_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:18:38,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:18:38,617 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 22:18:38,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:18:38,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:18:38,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:18:38,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:18:38,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:18:38,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:18:38,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:18:38,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:18:38,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:18:38,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:18:38,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:18:38,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:18:38,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:18:38,693 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:18:38,693 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:18:38,694 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:18:38,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:18:38,695 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:18:38,696 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:18:38,697 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:18:38,698 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:18:38,698 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:18:38,699 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:18:38,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:18:38,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:38,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:18:38,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:18:38,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:18:38,703 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:18:38,703 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:18:38,704 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:18:38,704 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:18:38,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:18:38,705 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_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2023-11-24 22:18:39,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:18:39,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:18:39,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:18:39,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:18:39,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:18:39,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-24 22:18:42,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:18:42,959 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:18:42,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2023-11-24 22:18:42,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/08a6aefea/58b006aa927c46bc941e9bf9eec14fb0/FLAGe08b8e2ff [2023-11-24 22:18:43,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/data/08a6aefea/58b006aa927c46bc941e9bf9eec14fb0 [2023-11-24 22:18:43,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:18:43,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:18:43,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:43,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:18:43,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:18:43,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:43" (1/1) ... [2023-11-24 22:18:43,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a140bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:43, skipping insertion in model container [2023-11-24 22:18:43,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:18:43" (1/1) ... [2023-11-24 22:18:43,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:18:44,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:44,312 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:18:44,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:18:44,528 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:44,529 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:44,529 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:44,529 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:44,529 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:18:44,537 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:18:44,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44 WrapperNode [2023-11-24 22:18:44,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:18:44,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:44,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:18:44,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:18:44,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,619 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-24 22:18:44,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:18:44,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:18:44,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:18:44,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:18:44,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:18:44,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:18:44,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:18:44,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:18:44,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:18:44" (1/1) ... [2023-11-24 22:18:44,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:18:44,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:18:44,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:18:44,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:18:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:18:44,750 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:18:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:18:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:18:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:18:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:18:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:18:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:18:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:18:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:18:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-24 22:18:44,927 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:18:44,930 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:18:45,136 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:18:45,212 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:18:45,212 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:18:45,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:45 BoogieIcfgContainer [2023-11-24 22:18:45,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:18:45,215 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:18:45,216 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:18:45,226 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:18:45,227 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:45" (1/1) ... [2023-11-24 22:18:45,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:18:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:18:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-24 22:18:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-24 22:18:45,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:18:45,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:18:45,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:18:45,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:18:45,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:18:45,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:18:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:45,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:18:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:45,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:18:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:18:45,832 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:18:45,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:18:45,838 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:18:45,870 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-24 22:18:45,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:18:45 ImpRootNode [2023-11-24 22:18:45,878 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:18:45,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:18:45,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:18:45,882 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:18:45,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:18:45" (3/4) ... [2023-11-24 22:18:45,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:18:45,886 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:18:45,887 INFO L158 Benchmark]: Toolchain (without parser) took 2859.69ms. Allocated memory is still 98.6MB. Free memory was 71.2MB in the beginning and 51.6MB in the end (delta: 19.6MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,888 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 69.2MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:18:45,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1506.25ms. Allocated memory is still 98.6MB. Free memory was 71.0MB in the beginning and 62.4MB in the end (delta: 8.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.18ms. Allocated memory is still 98.6MB. Free memory was 62.2MB in the beginning and 59.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,891 INFO L158 Benchmark]: Boogie Preprocessor took 45.52ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,892 INFO L158 Benchmark]: RCFGBuilder took 547.66ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 69.4MB in the end (delta: -12.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,893 INFO L158 Benchmark]: CodeCheck took 663.22ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 52.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,894 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 98.6MB. Free memory was 52.2MB in the beginning and 51.6MB in the end (delta: 558.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:18:45,905 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] EXPR data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560-L1570] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 69.2MB. Free memory is still 45.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1506.25ms. Allocated memory is still 98.6MB. Free memory was 71.0MB in the beginning and 62.4MB in the end (delta: 8.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.18ms. Allocated memory is still 98.6MB. Free memory was 62.2MB in the beginning and 59.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.52ms. Allocated memory is still 98.6MB. Free memory was 59.2MB in the beginning and 57.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.66ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 69.4MB in the end (delta: -12.3MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * CodeCheck took 663.22ms. Allocated memory is still 98.6MB. Free memory was 69.4MB in the beginning and 52.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 98.6MB. Free memory was 52.2MB in the beginning and 51.6MB in the end (delta: 558.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:18:45,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af78623d-731f-4ca5-ad57-757d056c1744/bin/ukojak-verify-afCqCEvfdi/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