./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_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_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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_284b2b17-b9e9-4403-9e25-712251dc0818/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 bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:25,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:26,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:51:26,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:26,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:26,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:26,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:26,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:26,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:26,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:26,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:26,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:26,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:26,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:26,127 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:26,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:26,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:26,129 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:51:26,129 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:26,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:26,130 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:26,131 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:26,132 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:26,132 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:26,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:26,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:26,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:26,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:26,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:26,135 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:26,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:26,137 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:26,137 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_284b2b17-b9e9-4403-9e25-712251dc0818/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 [2023-11-24 22:51:26,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:26,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:26,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:26,546 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:26,546 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:26,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2023-11-24 22:51:29,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:30,150 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:30,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2023-11-24 22:51:30,179 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/577857850/2f6264dace3f493595a50ad4de86fa8d/FLAG74f42e652 [2023-11-24 22:51:30,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/577857850/2f6264dace3f493595a50ad4de86fa8d [2023-11-24 22:51:30,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:30,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:30,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:30,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:30,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:30,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a87034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30, skipping insertion in model container [2023-11-24 22:51:30,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:31,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:31,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:31,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:31,708 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,708 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,709 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,709 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,709 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,709 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:31,717 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:31,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31 WrapperNode [2023-11-24 22:51:31,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:31,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:31,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:31,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:31,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,781 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2023-11-24 22:51:31,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:31,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:31,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:31,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:31,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:31,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:31,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:31,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:31,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:31,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:31,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:31,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:31,906 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:51:31,907 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:51:31,907 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:51:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:51:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 22:51:31,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:31,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:51:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:51:31,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:32,132 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:32,134 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:32,269 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:32,339 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:32,339 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:51:32,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:32 BoogieIcfgContainer [2023-11-24 22:51:32,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:32,342 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:32,342 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:32,353 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:32,353 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:32" (1/1) ... [2023-11-24 22:51:32,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-24 22:51:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-24 22:51:32,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:51:32,429 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:32,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,903 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:51:32,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-24 22:51:32,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:51:32 ImpRootNode [2023-11-24 22:51:32,933 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:51:32,934 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:51:32,934 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:51:32,934 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:51:32,935 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:32" (3/4) ... [2023-11-24 22:51:32,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:51:32,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:51:32,939 INFO L158 Benchmark]: Toolchain (without parser) took 2734.19ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 61.9MB in the end (delta: 52.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,946 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:32,947 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1508.74ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 100.6MB in the end (delta: 13.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.48ms. Allocated memory is still 151.0MB. Free memory was 100.6MB in the beginning and 97.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,950 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,951 INFO L158 Benchmark]: RCFGBuilder took 525.59ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 80.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,953 INFO L158 Benchmark]: CodeCheck took 591.40ms. Allocated memory is still 151.0MB. Free memory was 80.9MB in the beginning and 61.9MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,954 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 151.0MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:32,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570. 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); [L1570] 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) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={18:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fgets_sub_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_sub_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CALL funcPtr(data) [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 123.7MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1508.74ms. Allocated memory is still 151.0MB. Free memory was 114.4MB in the beginning and 100.6MB in the end (delta: 13.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.48ms. Allocated memory is still 151.0MB. Free memory was 100.6MB in the beginning and 97.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.59ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 80.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 591.40ms. Allocated memory is still 151.0MB. Free memory was 80.9MB in the beginning and 61.9MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 151.0MB. Free memory is still 61.9MB. 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 [2023-11-24 22:51:32,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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_284b2b17-b9e9-4403-9e25-712251dc0818/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 bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:35,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:35,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 22:51:35,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:35,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:35,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:35,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:35,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:35,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:35,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:35,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:35,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:35,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:35,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:35,891 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:51:35,891 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:51:35,892 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:51:35,892 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:51:35,892 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:35,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:35,894 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:35,895 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:35,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:35,896 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:35,896 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:51:35,897 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:51:35,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:35,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:35,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:35,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:35,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:35,900 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:51:35,900 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:51:35,901 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:35,901 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:51:35,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:51:35,901 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_284b2b17-b9e9-4403-9e25-712251dc0818/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf8231e6948cea3c1eb2b2224536c4a16967af2fed0da422b485c2c044760469 [2023-11-24 22:51:36,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:36,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:36,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:36,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:36,412 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:36,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2023-11-24 22:51:39,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:39,920 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:39,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_65_bad.i [2023-11-24 22:51:39,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/4d2835a6a/95fb87d105ea4602a2fbcbd35c766619/FLAG851683317 [2023-11-24 22:51:39,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/data/4d2835a6a/95fb87d105ea4602a2fbcbd35c766619 [2023-11-24 22:51:39,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:39,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:40,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:40,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:40,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:40,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:39" (1/1) ... [2023-11-24 22:51:40,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acca1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:40, skipping insertion in model container [2023-11-24 22:51:40,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:39" (1/1) ... [2023-11-24 22:51:40,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:41,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:41,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:41,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:41,362 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,363 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,363 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,363 WARN L675 CHandler]: The function funcPtr is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,363 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,363 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:51:41,372 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:41,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41 WrapperNode [2023-11-24 22:51:41,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:41,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:41,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:41,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:41,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,443 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 62 [2023-11-24 22:51:41,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:41,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:41,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:41,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:41,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:41,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:41,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:41,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:41,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:41" (1/1) ... [2023-11-24 22:51:41,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:41,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:41,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 22:51:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 22:51:41,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 22:51:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:51:41,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:51:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:41,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:51:41,606 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 22:51:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-24 22:51:41,816 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:41,819 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:41,968 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:42,038 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:42,038 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:51:42,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:42 BoogieIcfgContainer [2023-11-24 22:51:42,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:42,041 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:42,041 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:42,052 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:42,052 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:42" (1/1) ... [2023-11-24 22:51:42,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-11-24 22:51:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-11-24 22:51:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:51:42,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:42,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:51:42,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:51:42,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:51:42,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:51:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:42,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:42,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:42,698 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:51:42,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:51:42,711 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:51:42,736 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-24 22:51:42,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:51:42 ImpRootNode [2023-11-24 22:51:42,742 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:51:42,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:51:42,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:51:42,744 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:51:42,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:42" (3/4) ... [2023-11-24 22:51:42,747 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:51:42,748 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:51:42,749 INFO L158 Benchmark]: Toolchain (without parser) took 2751.66ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 62.3MB in the beginning and 69.4MB in the end (delta: -7.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,750 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:42,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.65ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 41.2MB in the end (delta: 20.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.34ms. Allocated memory is still 90.2MB. Free memory was 41.2MB in the beginning and 37.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,752 INFO L158 Benchmark]: Boogie Preprocessor took 53.78ms. Allocated memory is still 90.2MB. Free memory was 37.9MB in the beginning and 61.9MB in the end (delta: -24.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,753 INFO L158 Benchmark]: RCFGBuilder took 540.96ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 44.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,754 INFO L158 Benchmark]: CodeCheck took 701.35ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.5MB in the beginning and 70.1MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:42,754 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 69.4MB in the end (delta: 675.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:42,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570. 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); [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_sub_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_sub_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CALL funcPtr(data) [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=-2147483648, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.65ms. Allocated memory is still 90.2MB. Free memory was 62.1MB in the beginning and 41.2MB in the end (delta: 20.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.34ms. Allocated memory is still 90.2MB. Free memory was 41.2MB in the beginning and 37.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.78ms. Allocated memory is still 90.2MB. Free memory was 37.9MB in the beginning and 61.9MB in the end (delta: -24.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 540.96ms. Allocated memory is still 90.2MB. Free memory was 61.9MB in the beginning and 44.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 701.35ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.5MB in the beginning and 70.1MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 69.4MB in the end (delta: 675.3kB). 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~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 [2023-11-24 22:51:42,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284b2b17-b9e9-4403-9e25-712251dc0818/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