./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_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_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:38:57,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:38:57,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:38:57,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:38:57,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:38:57,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:38:57,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:38:57,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:38:57,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:38:57,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:38:57,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:38:57,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:38:57,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:38:57,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:38:57,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:38:57,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:38:57,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:38:57,784 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:38:57,785 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:38:57,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:38:57,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:38:57,786 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:38:57,787 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:38:57,787 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:38:57,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:38:57,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:38:57,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:38:57,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:38:57,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:38:57,790 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:38:57,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:38:57,791 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:38:57,791 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_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2023-12-03 01:38:57,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:38:58,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:38:58,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:38:58,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:38:58,010 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:38:58,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2023-12-03 01:39:00,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:39:01,053 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:39:01,054 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2023-12-03 01:39:01,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/833c9fa0b/81992b532a7d4dfdbe7939574e6050d4/FLAG8180e09a5 [2023-12-03 01:39:01,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/833c9fa0b/81992b532a7d4dfdbe7939574e6050d4 [2023-12-03 01:39:01,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:39:01,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:39:01,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:39:01,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:39:01,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:39:01,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:39:01" (1/1) ... [2023-12-03 01:39:01,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621246c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:01, skipping insertion in model container [2023-12-03 01:39:01,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:39:01" (1/1) ... [2023-12-03 01:39:01,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:39:01,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:39:01,920 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:39:02,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:39:02,183 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:02,183 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:02,183 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:02,183 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:02,184 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:02,192 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:39:02,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02 WrapperNode [2023-12-03 01:39:02,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:39:02,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:39:02,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:39:02,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:39:02,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,246 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-12-03 01:39:02,246 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:39:02,247 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:39:02,247 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:39:02,247 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:39:02,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:39:02,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:39:02,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:39:02,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:39:02,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:39:02,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:39:02,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:39:02,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:39:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:39:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:39:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:39:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:39:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:39:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:39:02,475 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:39:02,476 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:39:02,574 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:39:02,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:39:02,615 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:39:02,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:02 BoogieIcfgContainer [2023-12-03 01:39:02,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:39:02,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:39:02,618 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:39:02,628 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:39:02,628 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:02" (1/1) ... [2023-12-03 01:39:02,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:39:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:39:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:39:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:39:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:39:02,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:39:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:39:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:02,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:39:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:02,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:39:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:02,961 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:39:02,982 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 01:39:02,986 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-12-03 01:39:02,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:39:02 ImpRootNode [2023-12-03 01:39:02,990 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:39:02,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:39:02,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:39:02,991 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:39:02,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:02" (3/4) ... [2023-12-03 01:39:02,994 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:39:02,995 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:39:02,996 INFO L158 Benchmark]: Toolchain (without parser) took 1905.38ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.8MB in the beginning and 76.9MB in the end (delta: 21.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-12-03 01:39:02,996 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:39:02,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1101.35ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.8MB in the beginning and 116.3MB in the end (delta: -18.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-12-03 01:39:02,998 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.12ms. Allocated memory is still 172.0MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:39:02,998 INFO L158 Benchmark]: Boogie Preprocessor took 29.45ms. Allocated memory is still 172.0MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:39:02,999 INFO L158 Benchmark]: RCFGBuilder took 339.57ms. Allocated memory is still 172.0MB. Free memory was 111.3MB in the beginning and 96.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 01:39:02,999 INFO L158 Benchmark]: CodeCheck took 372.72ms. Allocated memory is still 172.0MB. Free memory was 96.6MB in the beginning and 76.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 01:39:03,000 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 172.0MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:39:03,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={30:29}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 100.7MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1101.35ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.8MB in the beginning and 116.3MB in the end (delta: -18.5MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.12ms. Allocated memory is still 172.0MB. Free memory was 115.5MB in the beginning and 113.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.45ms. Allocated memory is still 172.0MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.57ms. Allocated memory is still 172.0MB. Free memory was 111.3MB in the beginning and 96.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 372.72ms. Allocated memory is still 172.0MB. Free memory was 96.6MB in the beginning and 76.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 172.0MB. Free memory is still 76.9MB. 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 Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 01:39:03,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:39:04,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:39:04,996 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 01:39:05,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:39:05,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:39:05,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:39:05,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:39:05,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:39:05,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:39:05,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:39:05,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:39:05,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:39:05,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:39:05,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:39:05,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:39:05,035 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:39:05,036 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:39:05,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:39:05,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:39:05,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:39:05,038 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:39:05,039 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:39:05,039 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:39:05,040 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:39:05,040 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:39:05,041 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:39:05,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:39:05,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:39:05,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:39:05,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:39:05,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:39:05,043 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:39:05,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:39:05,044 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:39:05,044 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:39:05,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:39:05,044 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_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2023-12-03 01:39:05,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:39:05,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:39:05,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:39:05,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:39:05,377 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:39:05,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2023-12-03 01:39:08,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:39:08,470 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:39:08,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2023-12-03 01:39:08,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/6f75f58c0/d2a132af8a3346149a3767c9287e2a60/FLAG26e3aa5ea [2023-12-03 01:39:08,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/data/6f75f58c0/d2a132af8a3346149a3767c9287e2a60 [2023-12-03 01:39:08,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:39:08,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:39:08,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:39:08,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:39:08,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:39:08,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:39:08" (1/1) ... [2023-12-03 01:39:08,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f72bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:08, skipping insertion in model container [2023-12-03 01:39:08,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:39:08" (1/1) ... [2023-12-03 01:39:08,579 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:39:09,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:39:09,409 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:39:09,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:39:09,645 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:09,646 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:09,646 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:09,646 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:09,646 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:39:09,654 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:39:09,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09 WrapperNode [2023-12-03 01:39:09,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:39:09,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:39:09,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:39:09,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:39:09,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,717 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-12-03 01:39:09,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:39:09,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:39:09,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:39:09,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:39:09,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:39:09,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:39:09,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:39:09,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:39:09,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:39:09" (1/1) ... [2023-12-03 01:39:09,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:39:09,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:39:09,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:39:09,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:39:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:39:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:39:09,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:39:09,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:39:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:39:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 01:39:09,975 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:39:09,977 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:39:10,104 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:39:10,151 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:39:10,151 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:39:10,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:10 BoogieIcfgContainer [2023-12-03 01:39:10,153 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:39:10,153 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:39:10,154 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:39:10,163 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:39:10,164 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:10" (1/1) ... [2023-12-03 01:39:10,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:39:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:39:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 01:39:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 01:39:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:39:10,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:39:10,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:39:10,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:39:10,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:39:10,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:39:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:10,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:39:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:10,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:39:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:39:10,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:39:10,702 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 01:39:10,737 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 01:39:10,740 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-12-03 01:39:10,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:39:10 ImpRootNode [2023-12-03 01:39:10,745 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:39:10,746 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:39:10,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:39:10,746 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:39:10,747 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:39:10" (3/4) ... [2023-12-03 01:39:10,748 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:39:10,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:39:10,751 INFO L158 Benchmark]: Toolchain (without parser) took 2238.24ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 88.0MB in the end (delta: 2.5MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,751 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:39:10,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1140.63ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 90.5MB in the end (delta: -169.0kB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.49ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 87.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,753 INFO L158 Benchmark]: Boogie Preprocessor took 37.35ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 85.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,754 INFO L158 Benchmark]: RCFGBuilder took 396.50ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 67.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,754 INFO L158 Benchmark]: CodeCheck took 591.51ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 88.1MB in the end (delta: -20.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-12-03 01:39:10,755 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:39:10,758 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: 0.5s, 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data=-2147483648, dataCopy=-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 0.18ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1140.63ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 90.5MB in the end (delta: -169.0kB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.49ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 87.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.35ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 85.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.50ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 67.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 591.51ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 88.1MB in the end (delta: -20.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 88.0MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 01:39:10,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096ca973-de6e-4674-9e26-ce09b41f4e91/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample