./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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_aa57bd99-10df-483a-8f75-9382a1262960/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 c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:54:01,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:54:01,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:54:01,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:54:01,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:54:01,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:54:01,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:54:01,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:54:01,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:54:01,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:54:01,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:54:01,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:54:01,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:54:01,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:54:01,231 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:54:01,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:54:01,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:54:01,232 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:54:01,233 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:54:01,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:54:01,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:54:01,236 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:54:01,237 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:54:01,237 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:54:01,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:54:01,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:54:01,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:54:01,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:54:01,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:54:01,240 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:54:01,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:54:01,241 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:54:01,241 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_aa57bd99-10df-483a-8f75-9382a1262960/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c [2023-12-03 03:54:01,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:54:01,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:54:01,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:54:01,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:54:01,465 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:54:01,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2023-12-03 03:54:04,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:54:04,561 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:54:04,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2023-12-03 03:54:04,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/633fd2a32/92ce7f39ce8d46789061ed756865bed4/FLAG9025760c8 [2023-12-03 03:54:04,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/633fd2a32/92ce7f39ce8d46789061ed756865bed4 [2023-12-03 03:54:04,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:54:04,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:54:04,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:54:04,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:54:04,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:54:04,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:54:04" (1/1) ... [2023-12-03 03:54:04,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77468531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:04, skipping insertion in model container [2023-12-03 03:54:04,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:54:04" (1/1) ... [2023-12-03 03:54:04,677 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:54:05,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:54:05,425 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:54:05,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:54:05,664 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:05,664 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:05,664 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:05,664 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:05,664 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:05,672 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:54:05,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05 WrapperNode [2023-12-03 03:54:05,673 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:54:05,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:54:05,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:54:05,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:54:05,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,727 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2023-12-03 03:54:05,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:54:05,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:54:05,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:54:05,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:54:05,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:54:05,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:54:05,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:54:05,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:54:05,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:05" (1/1) ... [2023-12-03 03:54:05,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:54:05,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:54:05,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:54:05,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:54:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:54:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:54:05,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:54:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:54:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 03:54:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:54:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:54:05,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:54:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:54:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:54:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:54:05,961 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:54:05,964 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:54:06,075 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:54:06,117 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:54:06,118 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:54:06,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:06 BoogieIcfgContainer [2023-12-03 03:54:06,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:54:06,120 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:54:06,120 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:54:06,130 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:54:06,130 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:06" (1/1) ... [2023-12-03 03:54:06,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:54:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:54:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:54:06,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:54:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:54:06,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:54:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:54:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:06,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:54:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:06,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:54:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:06,485 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:54:06,508 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-12-03 03:54:06,511 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-12-03 03:54:06,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:54:06 ImpRootNode [2023-12-03 03:54:06,516 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:54:06,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:54:06,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:54:06,517 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:54:06,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:06" (3/4) ... [2023-12-03 03:54:06,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:54:06,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:54:06,522 INFO L158 Benchmark]: Toolchain (without parser) took 1916.18ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 52.5MB in the end (delta: 46.9MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2023-12-03 03:54:06,522 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:54:06,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1066.32ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 91.5MB in the end (delta: 7.4MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-12-03 03:54:06,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.39ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:54:06,524 INFO L158 Benchmark]: Boogie Preprocessor took 27.50ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 87.3MB in the end (delta: 909.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:54:06,525 INFO L158 Benchmark]: RCFGBuilder took 363.50ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:54:06,525 INFO L158 Benchmark]: CodeCheck took 396.16ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 52.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 03:54:06,526 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:54:06,529 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1066.32ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 91.5MB in the end (delta: 7.4MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.39ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 88.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.50ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 87.3MB in the end (delta: 909.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.50ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 396.16ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 52.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory is still 52.5MB. 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~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post102 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 03:54:06,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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_aa57bd99-10df-483a-8f75-9382a1262960/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 c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:54:08,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:54:08,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 03:54:08,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:54:08,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:54:08,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:54:08,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:54:08,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:54:08,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:54:08,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:54:08,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:54:08,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:54:08,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:54:08,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:54:08,555 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:54:08,556 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:54:08,557 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:54:08,557 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:54:08,558 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:54:08,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:54:08,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:54:08,560 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:54:08,560 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:54:08,560 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:54:08,561 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:54:08,561 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:54:08,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:54:08,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:54:08,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:54:08,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:54:08,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:54:08,564 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:54:08,565 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:54:08,565 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:54:08,565 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:54:08,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:54:08,566 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_aa57bd99-10df-483a-8f75-9382a1262960/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6df82ed5c140904dabe43b954a5cb418c4c35c903551258d5841b5d765d4a2c [2023-12-03 03:54:08,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:54:08,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:54:08,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:54:08,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:54:08,890 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:54:08,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2023-12-03 03:54:11,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:54:12,024 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:54:12,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_42_bad.i [2023-12-03 03:54:12,049 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/dcf0a7501/90c9b832081f4f68af5daeb9e9d0b89a/FLAG52002ffbf [2023-12-03 03:54:12,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/data/dcf0a7501/90c9b832081f4f68af5daeb9e9d0b89a [2023-12-03 03:54:12,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:54:12,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:54:12,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:54:12,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:54:12,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:54:12,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:54:12" (1/1) ... [2023-12-03 03:54:12,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a98ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:12, skipping insertion in model container [2023-12-03 03:54:12,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:54:12" (1/1) ... [2023-12-03 03:54:12,138 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:54:12,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:54:12,906 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:54:12,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:54:13,120 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:13,120 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:13,120 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:13,121 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:13,121 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:54:13,126 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:54:13,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13 WrapperNode [2023-12-03 03:54:13,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:54:13,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:54:13,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:54:13,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:54:13,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,185 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-12-03 03:54:13,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:54:13,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:54:13,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:54:13,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:54:13,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:54:13,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:54:13,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:54:13,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:54:13,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:54:13,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:54:13,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:54:13,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:54:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:54:13,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:54:13,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:54:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:54:13,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 03:54:13,438 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:54:13,440 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:54:13,567 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:54:13,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:54:13,630 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:54:13,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:13 BoogieIcfgContainer [2023-12-03 03:54:13,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:54:13,633 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:54:13,633 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:54:13,643 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:54:13,643 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:13" (1/1) ... [2023-12-03 03:54:13,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:54:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:54:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:54:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:54:13,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:54:13,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:54:13,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:54:13,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:54:13,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:54:13,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:54:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:13,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:54:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:14,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:54:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:54:14,195 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 03:54:14,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:54:14,202 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:54:14,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 03:54:14,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-12-03 03:54:14,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:54:14 ImpRootNode [2023-12-03 03:54:14,230 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:54:14,231 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:54:14,231 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:54:14,231 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:54:14,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:54:13" (3/4) ... [2023-12-03 03:54:14,233 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:54:14,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:54:14,235 INFO L158 Benchmark]: Toolchain (without parser) took 2169.61ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 66.8MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,236 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:54:14,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1060.63ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 62.9MB in the end (delta: 27.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.58ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,238 INFO L158 Benchmark]: Boogie Preprocessor took 35.57ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,238 INFO L158 Benchmark]: RCFGBuilder took 409.44ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 85.6MB in the end (delta: -27.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,239 INFO L158 Benchmark]: CodeCheck took 597.46ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 67.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 03:54:14,239 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 66.8MB in the end (delta: 409.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:54:14,243 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] EXPR data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1550-L1560] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1060.63ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 62.9MB in the end (delta: 27.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.58ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.57ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.44ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 85.6MB in the end (delta: -27.8MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * CodeCheck took 597.46ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 67.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 117.4MB. Free memory was 67.2MB in the beginning and 66.8MB in the end (delta: 409.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post100 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 03:54:14,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57bd99-10df-483a-8f75-9382a1262960/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