./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:13:11,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:13:11,974 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 23:13:11,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:13:11,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:13:12,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:13:12,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:13:12,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:13:12,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:13:12,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:13:12,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:13:12,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:13:12,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:13:12,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:13:12,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:13:12,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:13:12,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:13:12,041 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:13:12,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:13:12,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:13:12,043 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:13:12,044 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:13:12,045 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:13:12,045 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:13:12,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:13:12,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:12,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:13:12,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:13:12,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:13:12,047 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:13:12,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:13:12,049 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:13:12,049 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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2023-11-24 23:13:12,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:13:12,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:13:12,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:13:12,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:13:12,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:13:12,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2023-11-24 23:13:15,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:13:15,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:13:15,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2023-11-24 23:13:15,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/849ba2864/8e6b04e6534940c398f722ad8bbcf6ef/FLAG0f7d11eee [2023-11-24 23:13:15,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/849ba2864/8e6b04e6534940c398f722ad8bbcf6ef [2023-11-24 23:13:15,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:13:15,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:13:15,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:15,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:13:15,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:13:15,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:15" (1/1) ... [2023-11-24 23:13:15,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf813d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:15, skipping insertion in model container [2023-11-24 23:13:15,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:15" (1/1) ... [2023-11-24 23:13:16,083 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:13:17,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:17,190 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:13:17,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:17,506 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:17,506 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:17,506 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:17,507 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:17,507 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:17,515 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:13:17,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17 WrapperNode [2023-11-24 23:13:17,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:17,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:17,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:13:17,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:13:17,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,590 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-24 23:13:17,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:17,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:13:17,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:13:17,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:13:17,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:13:17,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:13:17,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:13:17,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:13:17,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:17" (1/1) ... [2023-11-24 23:13:17,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:17,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:13:17,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:13:17,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:13:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 23:13:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:13:17,706 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:13:17,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:13:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:13:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:13:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:13:17,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:13:17,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:13:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:13:17,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:13:17,876 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:13:17,878 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:13:18,019 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:13:18,076 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:13:18,077 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:13:18,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:18 BoogieIcfgContainer [2023-11-24 23:13:18,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:13:18,080 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:13:18,081 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:13:18,094 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:13:18,094 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:18" (1/1) ... [2023-11-24 23:13:18,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:13:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-24 23:13:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-24 23:13:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:13:18,166 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:18,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:13:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:18,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:13:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:18,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:13:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:18,556 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:13:18,592 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-24 23:13:18,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:13:18 ImpRootNode [2023-11-24 23:13:18,602 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:13:18,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:13:18,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:13:18,618 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:13:18,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:18" (3/4) ... [2023-11-24 23:13:18,623 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:13:18,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:13:18,626 INFO L158 Benchmark]: Toolchain (without parser) took 2639.58ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 89.0MB in the beginning and 125.8MB in the end (delta: -36.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:13:18,627 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 98.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:13:18,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1526.46ms. Allocated memory is still 130.0MB. Free memory was 88.5MB in the beginning and 84.9MB in the end (delta: 3.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-24 23:13:18,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.33ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 81.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:13:18,630 INFO L158 Benchmark]: Boogie Preprocessor took 31.43ms. Allocated memory is still 130.0MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:13:18,632 INFO L158 Benchmark]: RCFGBuilder took 455.81ms. Allocated memory is still 130.0MB. Free memory was 80.4MB in the beginning and 65.1MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:13:18,632 INFO L158 Benchmark]: CodeCheck took 521.80ms. Allocated memory is still 130.0MB. Free memory was 65.1MB in the beginning and 95.8MB in the end (delta: -30.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-24 23:13:18,633 INFO L158 Benchmark]: Witness Printer took 20.80ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 95.7MB in the beginning and 125.8MB in the end (delta: -30.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-11-24 23:13:18,646 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, 0.1s 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: 1582]: 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 1571. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=27, argc=27, argv={28:26}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [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] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 0.36ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 80.4MB in the end (delta: 98.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1526.46ms. Allocated memory is still 130.0MB. Free memory was 88.5MB in the beginning and 84.9MB in the end (delta: 3.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.33ms. Allocated memory is still 130.0MB. Free memory was 84.9MB in the beginning and 81.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.43ms. Allocated memory is still 130.0MB. Free memory was 81.9MB in the beginning and 80.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 455.81ms. Allocated memory is still 130.0MB. Free memory was 80.4MB in the beginning and 65.1MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 521.80ms. Allocated memory is still 130.0MB. Free memory was 65.1MB in the beginning and 95.8MB in the end (delta: -30.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 20.80ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 95.7MB in the beginning and 125.8MB in the end (delta: -30.2MB). Peak memory consumption was 2.3MB. 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 23:13:18,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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 dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:13:21,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:13:21,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-24 23:13:21,619 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:13:21,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:13:21,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:13:21,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:13:21,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:13:21,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:13:21,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:13:21,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:13:21,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:13:21,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:13:21,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:13:21,634 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:13:21,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:13:21,635 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:13:21,635 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:13:21,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:13:21,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:13:21,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:13:21,638 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:13:21,638 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:13:21,639 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:13:21,639 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:21,640 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:13:21,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:13:21,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:21,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:13:21,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:13:21,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:13:21,644 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:13:21,644 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:21,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:13:21,645 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:13:21,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:13:21,645 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_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfae07a1ceec6d1b65c4238ed3c2453f6db5ebb367a189128b5d9b17c38d8ea6 [2023-11-24 23:13:22,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:13:22,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:13:22,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:13:22,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:13:22,132 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:13:22,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2023-11-24 23:13:25,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:13:25,746 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:13:25,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_22_bad.i [2023-11-24 23:13:25,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/82e06be82/d1008ce8e6b64457966f5d361dc08f1e/FLAG8303ace6b [2023-11-24 23:13:25,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/data/82e06be82/d1008ce8e6b64457966f5d361dc08f1e [2023-11-24 23:13:25,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:13:25,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:13:25,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:25,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:13:25,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:13:25,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:25" (1/1) ... [2023-11-24 23:13:25,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647b313c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:25, skipping insertion in model container [2023-11-24 23:13:25,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:13:25" (1/1) ... [2023-11-24 23:13:25,920 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:13:27,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:27,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:13:27,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:13:27,505 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:27,505 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:27,505 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:27,506 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:27,506 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:13:27,513 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:13:27,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27 WrapperNode [2023-11-24 23:13:27,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:13:27,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:27,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:13:27,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:13:27,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,621 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-24 23:13:27,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:13:27,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:13:27,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:13:27,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:13:27,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:13:27,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:13:27,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:13:27,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:13:27,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:13:27" (1/1) ... [2023-11-24 23:13:27,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:13:27,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:13:27,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:13:27,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:13:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-24 23:13:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:13:27,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:13:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:13:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:13:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:13:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:13:27,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:13:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:13:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:13:27,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-24 23:13:28,043 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:13:28,045 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:13:28,263 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:13:28,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:13:28,338 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:13:28,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:28 BoogieIcfgContainer [2023-11-24 23:13:28,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:13:28,340 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:13:28,341 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:13:28,350 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:13:28,351 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:28" (1/1) ... [2023-11-24 23:13:28,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:13:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:13:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-24 23:13:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-24 23:13:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:13:28,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:13:28,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:13:28,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:13:28,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:13:28,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:13:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:28,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:13:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:28,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:13:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:13:28,996 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:13:29,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:13:29,006 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:13:29,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-24 23:13:29,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:13:29 ImpRootNode [2023-11-24 23:13:29,051 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:13:29,054 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:13:29,054 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:13:29,055 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:13:29,055 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:13:28" (3/4) ... [2023-11-24 23:13:29,078 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:13:29,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:13:29,081 INFO L158 Benchmark]: Toolchain (without parser) took 3265.36ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 78.1MB in the end (delta: -23.7MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,082 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 57.3MB in the end (delta: 154.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1695.19ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 54.5MB in the end (delta: -266.7kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.99ms. Allocated memory is still 107.0MB. Free memory was 54.5MB in the beginning and 51.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,086 INFO L158 Benchmark]: Boogie Preprocessor took 70.29ms. Allocated memory is still 107.0MB. Free memory was 51.3MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,087 INFO L158 Benchmark]: RCFGBuilder took 645.83ms. Allocated memory is still 107.0MB. Free memory was 49.3MB in the beginning and 62.9MB in the end (delta: -13.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,088 INFO L158 Benchmark]: CodeCheck took 711.15ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 44.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,093 INFO L158 Benchmark]: Witness Printer took 25.65ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 78.1MB in the end (delta: -33.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:13:29,103 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: 1582]: 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 1571. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=0, 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_22_bad() [L1552] int data; [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] CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_sub_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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] [L1582] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_22_badGlobal=1, 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 0.71ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 57.3MB in the end (delta: 154.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1695.19ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 54.5MB in the end (delta: -266.7kB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.99ms. Allocated memory is still 107.0MB. Free memory was 54.5MB in the beginning and 51.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.29ms. Allocated memory is still 107.0MB. Free memory was 51.3MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.83ms. Allocated memory is still 107.0MB. Free memory was 49.3MB in the beginning and 62.9MB in the end (delta: -13.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * CodeCheck took 711.15ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 44.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 25.65ms. Allocated memory is still 107.0MB. Free memory was 44.8MB in the beginning and 78.1MB in the end (delta: -33.3MB). Peak memory consumption was 4.2MB. 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 23:13:29,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74394eec-3e55-4c74-8fe6-07fd6a5657ef/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