./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL --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 f07a5f5352d278fa4748e804a61be96cfd77883de91706beeef2d198aa8c0efc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:11:32,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:11:32,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:11:32,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:11:32,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:11:32,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:11:32,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:11:32,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:11:32,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:11:32,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:11:32,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:11:32,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:11:32,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:11:32,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:11:32,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:11:32,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:11:32,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:11:32,281 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:11:32,282 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:11:32,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:11:32,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:11:32,283 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:11:32,284 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:11:32,284 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:11:32,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:11:32,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:32,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:11:32,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:11:32,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:11:32,288 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:11:32,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:11:32,289 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:11:32,289 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_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07a5f5352d278fa4748e804a61be96cfd77883de91706beeef2d198aa8c0efc [2023-11-19 03:11:32,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:11:32,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:11:32,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:11:32,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:11:32,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:11:32,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i [2023-11-19 03:11:35,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:11:36,088 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:11:36,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i [2023-11-19 03:11:36,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/70317a315/a03318217a04477cac64e71223ed0c5c/FLAGb111c4d90 [2023-11-19 03:11:36,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/70317a315/a03318217a04477cac64e71223ed0c5c [2023-11-19 03:11:36,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:11:36,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:11:36,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:36,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:11:36,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:11:36,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:36" (1/1) ... [2023-11-19 03:11:36,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c1ac5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:36, skipping insertion in model container [2023-11-19 03:11:36,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:36" (1/1) ... [2023-11-19 03:11:36,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:11:36,624 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:11:37,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:37,122 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:11:37,146 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:11:37,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:37,395 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,396 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,396 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,396 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,396 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,397 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:37,405 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:11:37,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37 WrapperNode [2023-11-19 03:11:37,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:37,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:37,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:11:37,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:11:37,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,498 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2023-11-19 03:11:37,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:37,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:11:37,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:11:37,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:11:37,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:11:37,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:11:37,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:11:37,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:11:37,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:37" (1/1) ... [2023-11-19 03:11:37,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:37,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:11:37,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:11:37,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:11:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:11:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:11:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:11:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:11:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:11:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:11:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:11:37,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:11:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:11:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:11:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:11:37,851 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:11:37,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:11:38,050 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:11:38,086 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:11:38,086 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:11:38,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:38 BoogieIcfgContainer [2023-11-19 03:11:38,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:11:38,092 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:11:38,092 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:11:38,103 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:11:38,107 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:38" (1/1) ... [2023-11-19 03:11:38,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:11:38,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:11:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:11:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:11:38,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:38,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:11:38,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 26 transitions. [2023-11-19 03:11:38,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-11-19 03:11:38,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:11:38,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:38,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:38,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:11:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:38,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:11:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:38,678 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:11:38,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-11-19 03:11:38,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated [2023-11-19 03:11:38,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-11-19 03:11:38,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:11:38 ImpRootNode [2023-11-19 03:11:38,725 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:11:38,726 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:11:38,726 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:11:38,726 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:11:38,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:38" (3/4) ... [2023-11-19 03:11:38,731 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:11:38,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:11:38,733 INFO L158 Benchmark]: Toolchain (without parser) took 2600.86ms. Allocated memory is still 197.1MB. Free memory was 152.3MB in the beginning and 95.5MB in the end (delta: 56.8MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,734 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:38,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1272.46ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 142.4MB in the end (delta: 9.6MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.25ms. Allocated memory is still 197.1MB. Free memory was 142.4MB in the beginning and 139.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,738 INFO L158 Benchmark]: Boogie Preprocessor took 62.45ms. Allocated memory is still 197.1MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,738 INFO L158 Benchmark]: RCFGBuilder took 528.99ms. Allocated memory is still 197.1MB. Free memory was 137.5MB in the beginning and 122.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,744 INFO L158 Benchmark]: CodeCheck took 632.99ms. Allocated memory is still 197.1MB. Free memory was 122.1MB in the beginning and 95.5MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 03:11:38,745 INFO L158 Benchmark]: Witness Printer took 6.63ms. Allocated memory is still 197.1MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:38,753 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:29}, argv={13:29}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1589] CALL CWE191_Integer_Underflow__int_fgets_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } 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] [L1573] case 7: [L1575] 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 0.30ms. Allocated memory is still 121.6MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1272.46ms. Allocated memory is still 197.1MB. Free memory was 152.0MB in the beginning and 142.4MB in the end (delta: 9.6MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.25ms. Allocated memory is still 197.1MB. Free memory was 142.4MB in the beginning and 139.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.45ms. Allocated memory is still 197.1MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.99ms. Allocated memory is still 197.1MB. Free memory was 137.5MB in the beginning and 122.1MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 632.99ms. Allocated memory is still 197.1MB. Free memory was 122.1MB in the beginning and 95.5MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.63ms. Allocated memory is still 197.1MB. Free memory is still 95.5MB. 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: IdentifierExpression #t~switch98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch101 could not be translated - 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 [2023-11-19 03:11:38,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL --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 f07a5f5352d278fa4748e804a61be96cfd77883de91706beeef2d198aa8c0efc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:11:41,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:11:41,494 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:11:41,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:11:41,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:11:41,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:11:41,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:11:41,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:11:41,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:11:41,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:11:41,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:11:41,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:11:41,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:11:41,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:11:41,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:11:41,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:11:41,558 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:11:41,559 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:11:41,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:11:41,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:11:41,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:11:41,561 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:11:41,561 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:11:41,562 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:11:41,562 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:41,563 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:11:41,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:11:41,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:41,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:11:41,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:11:41,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:11:41,566 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:11:41,566 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:41,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:11:41,567 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:11:41,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:11:41,567 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_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07a5f5352d278fa4748e804a61be96cfd77883de91706beeef2d198aa8c0efc [2023-11-19 03:11:42,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:11:42,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:11:42,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:11:42,044 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:11:42,045 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:11:42,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i [2023-11-19 03:11:45,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:11:45,793 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:11:45,794 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_15_bad.i [2023-11-19 03:11:45,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/62463723a/5d5e918a622541f898653ad24dafeb55/FLAG914f99b74 [2023-11-19 03:11:45,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/data/62463723a/5d5e918a622541f898653ad24dafeb55 [2023-11-19 03:11:45,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:11:45,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:11:45,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:45,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:11:45,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:11:45,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:45" (1/1) ... [2023-11-19 03:11:45,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d23df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:45, skipping insertion in model container [2023-11-19 03:11:45,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:45" (1/1) ... [2023-11-19 03:11:45,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:11:46,457 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:11:47,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:47,022 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:11:47,042 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:11:47,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:47,290 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,291 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,291 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,291 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,291 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,291 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:11:47,300 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:11:47,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47 WrapperNode [2023-11-19 03:11:47,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:47,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:47,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:11:47,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:11:47,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,392 INFO L138 Inliner]: procedures = 505, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-11-19 03:11:47,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:47,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:11:47,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:11:47,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:11:47,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:11:47,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:11:47,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:11:47,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:11:47,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:47,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:11:47,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:11:47,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:11:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:11:47,513 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:11:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:11:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:11:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:11:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:11:47,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:11:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:11:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:11:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:11:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 03:11:47,687 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:11:47,690 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:11:47,834 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:11:47,917 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:11:47,920 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:11:47,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:47 BoogieIcfgContainer [2023-11-19 03:11:47,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:11:47,927 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:11:47,927 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:11:47,938 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:11:47,939 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:47" (1/1) ... [2023-11-19 03:11:47,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:11:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-19 03:11:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 03:11:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:11:48,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:48,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:48,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:48,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:11:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:48,190 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:11:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:48,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:11:48,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:48,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:11:48,306 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:11:48,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:11:48,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 26 transitions. [2023-11-19 03:11:48,375 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-11-19 03:11:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:11:48,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:48,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:48,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:48,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:48,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:11:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:48,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:11:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:48,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:11:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:11:48,930 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:11:48,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:11:48,937 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:11:48,979 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated [2023-11-19 03:11:48,981 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-19 03:11:48,981 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch99 could not be translated [2023-11-19 03:11:48,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:11:48 ImpRootNode [2023-11-19 03:11:48,986 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:11:48,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:11:48,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:11:48,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:11:48,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:47" (3/4) ... [2023-11-19 03:11:48,990 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:11:48,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:11:48,992 INFO L158 Benchmark]: Toolchain (without parser) took 3130.44ms. Allocated memory is still 107.0MB. Free memory was 78.8MB in the beginning and 48.1MB in the end (delta: 30.7MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-19 03:11:48,992 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:48,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1439.66ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 66.8MB in the end (delta: 11.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2023-11-19 03:11:48,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.07ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 63.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:48,995 INFO L158 Benchmark]: Boogie Preprocessor took 36.81ms. Allocated memory is still 107.0MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:49,000 INFO L158 Benchmark]: RCFGBuilder took 495.43ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 76.0MB in the end (delta: -14.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 03:11:49,001 INFO L158 Benchmark]: CodeCheck took 1059.09ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 48.1MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 03:11:49,001 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 107.0MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:49,008 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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); [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1589] CALL CWE191_Integer_Underflow__int_fgets_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } 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] [L1573] case 7: [L1575] 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 0.72ms. Allocated memory is still 71.3MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1439.66ms. Allocated memory is still 107.0MB. Free memory was 78.6MB in the beginning and 66.8MB in the end (delta: 11.8MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.07ms. Allocated memory is still 107.0MB. Free memory was 66.8MB in the beginning and 63.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.81ms. Allocated memory is still 107.0MB. Free memory was 63.7MB in the beginning and 61.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.43ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 76.0MB in the end (delta: -14.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * CodeCheck took 1059.09ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 48.1MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 107.0MB. Free memory is still 48.1MB. 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: IdentifierExpression #t~switch96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch99 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 [2023-11-19 03:11:49,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc11d60-f405-41a8-827c-c89fb393906e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample