./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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 2f137a637033c497cfed473fcf27b4b9fabaea72c2273fcc06e5071e541a8ec7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:38,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:38,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 02:51:38,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:51:38,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:51:38,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:38,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:38,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:38,961 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:38,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:38,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:38,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:38,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:51:38,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:38,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:38,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:38,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:38,968 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:51:38,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:38,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:38,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:38,971 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:38,972 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:38,972 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:38,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:38,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:38,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:38,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:38,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:38,976 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:51:38,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:51:38,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:38,978 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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f137a637033c497cfed473fcf27b4b9fabaea72c2273fcc06e5071e541a8ec7 [2023-11-19 02:51:39,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:39,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:39,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:39,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:39,317 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:39,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i [2023-11-19 02:51:42,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:42,952 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:42,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i [2023-11-19 02:51:42,982 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/3cfc307de/de0fcbd8145c44d492b13c8510a090cd/FLAG44ecd529e [2023-11-19 02:51:42,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/3cfc307de/de0fcbd8145c44d492b13c8510a090cd [2023-11-19 02:51:43,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:43,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:43,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:43,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:43,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:43,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:43" (1/1) ... [2023-11-19 02:51:43,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1177dad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:43, skipping insertion in model container [2023-11-19 02:51:43,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:43" (1/1) ... [2023-11-19 02:51:43,100 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:43,495 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:44,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:44,108 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:44,132 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:44,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:44,360 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,360 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,360 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,360 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,360 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,361 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:44,368 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:44,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44 WrapperNode [2023-11-19 02:51:44,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:44,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:44,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:44,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:44,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,483 INFO L138 Inliner]: procedures = 503, calls = 67, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 58 [2023-11-19 02:51:44,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:44,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:44,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:44,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:44,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:44,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:44,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:44,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:44,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:44" (1/1) ... [2023-11-19 02:51:44,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:44,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:44,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:44,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:51:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:51:44,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:51:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 02:51:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:44,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:51:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:51:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:51:44,813 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:44,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:44,953 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:45,010 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:45,010 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:51:45,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:45 BoogieIcfgContainer [2023-11-19 02:51:45,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:45,016 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:45,016 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:45,027 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:45,028 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:45" (1/1) ... [2023-11-19 02:51:45,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-19 02:51:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-19 02:51:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:51:45,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:45,627 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 02:51:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-19 02:51:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-19 02:51:45,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:51:45,731 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:45,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:51:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:45,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:45,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:45,959 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:51:46,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:46 ImpRootNode [2023-11-19 02:51:46,011 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:46,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:46,012 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:46,012 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:46,013 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:45" (3/4) ... [2023-11-19 02:51:46,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:51:46,018 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:46,019 INFO L158 Benchmark]: Toolchain (without parser) took 3015.07ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 120.3MB in the end (delta: 36.7MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,019 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:46,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1364.69ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 93.9MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.78ms. Allocated memory is still 201.3MB. Free memory was 93.9MB in the beginning and 91.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,021 INFO L158 Benchmark]: Boogie Preprocessor took 48.73ms. Allocated memory is still 201.3MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,022 INFO L158 Benchmark]: RCFGBuilder took 481.58ms. Allocated memory is still 201.3MB. Free memory was 88.9MB in the beginning and 157.0MB in the end (delta: -68.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,023 INFO L158 Benchmark]: CodeCheck took 994.99ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 121.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 02:51:46,023 INFO L158 Benchmark]: Witness Printer took 6.07ms. Allocated memory is still 201.3MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:46,027 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=28, argc=28, argv={12:27}, argv={12:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_53b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_53c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_add_53d_badSink(data) [L1587] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, 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 151.0MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1364.69ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 93.9MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.78ms. Allocated memory is still 201.3MB. Free memory was 93.9MB in the beginning and 91.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.73ms. Allocated memory is still 201.3MB. Free memory was 91.0MB in the beginning and 88.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.58ms. Allocated memory is still 201.3MB. Free memory was 88.9MB in the beginning and 157.0MB in the end (delta: -68.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * CodeCheck took 994.99ms. Allocated memory is still 201.3MB. Free memory was 157.0MB in the beginning and 121.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 6.07ms. Allocated memory is still 201.3MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:51:46,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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 2f137a637033c497cfed473fcf27b4b9fabaea72c2273fcc06e5071e541a8ec7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:51:49,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:51:49,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 02:51:49,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:51:49,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:51:49,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:51:49,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:51:49,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:51:49,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:51:49,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:51:49,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:51:49,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:51:49,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:51:49,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:51:49,251 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:51:49,251 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:51:49,252 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:51:49,252 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:51:49,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:51:49,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:51:49,253 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:51:49,254 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:51:49,255 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:51:49,255 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:51:49,256 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:49,256 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:51:49,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:51:49,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:49,258 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:51:49,258 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:51:49,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:51:49,260 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:51:49,260 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:49,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:51:49,261 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:51:49,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:51:49,262 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_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f137a637033c497cfed473fcf27b4b9fabaea72c2273fcc06e5071e541a8ec7 [2023-11-19 02:51:49,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:51:49,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:51:49,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:51:49,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:51:49,769 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:51:49,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i [2023-11-19 02:51:52,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:51:53,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:51:53,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_53_bad.i [2023-11-19 02:51:53,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/b48904d25/49bc6883e40f4b7f8bcba9a8c6809bb4/FLAGe682bab37 [2023-11-19 02:51:53,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/data/b48904d25/49bc6883e40f4b7f8bcba9a8c6809bb4 [2023-11-19 02:51:53,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:51:53,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:51:53,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:53,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:51:53,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:51:53,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:53" (1/1) ... [2023-11-19 02:51:53,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d71da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:53, skipping insertion in model container [2023-11-19 02:51:53,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:51:53" (1/1) ... [2023-11-19 02:51:53,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:51:54,125 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:54,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:54,884 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:51:54,938 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 02:51:55,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:51:55,286 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,286 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,287 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,287 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,287 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,287 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 02:51:55,297 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:51:55,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55 WrapperNode [2023-11-19 02:51:55,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:51:55,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:55,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:51:55,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:51:55,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,384 INFO L138 Inliner]: procedures = 508, calls = 67, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 57 [2023-11-19 02:51:55,385 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:51:55,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:51:55,386 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:51:55,386 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:51:55,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:51:55,436 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:51:55,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:51:55,437 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:51:55,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:51:55" (1/1) ... [2023-11-19 02:51:55,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:51:55,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:51:55,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:51:55,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:51:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 02:51:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 02:51:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 02:51:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:51:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:51:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:51:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:51:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:51:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:51:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 02:51:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 02:51:55,753 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:51:55,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:51:56,017 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:51:56,109 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:51:56,109 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:51:56,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:56 BoogieIcfgContainer [2023-11-19 02:51:56,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:51:56,116 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:51:56,117 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:51:56,130 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:51:56,131 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:56" (1/1) ... [2023-11-19 02:51:56,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:51:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-19 02:51:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-19 02:51:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:51:56,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:56,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:56,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:51:56,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:51:56,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:51:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:56,496 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:51:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:51:56,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:51:56,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:51:56,595 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 02:51:56,598 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:51:56,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:51:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:51:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-19 02:51:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-19 02:51:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:51:56,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:51:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:51:56,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:51:56,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:51:56,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:51:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:56,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:57,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:51:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:51:57,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:51:57,189 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:51:57,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:51:57 ImpRootNode [2023-11-19 02:51:57,234 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:51:57,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:51:57,235 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:51:57,235 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:51:57,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:51:56" (3/4) ... [2023-11-19 02:51:57,238 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:51:57,239 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:51:57,240 INFO L158 Benchmark]: Toolchain (without parser) took 3669.35ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 62.9MB in the beginning and 66.1MB in the end (delta: -3.1MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-11-19 02:51:57,241 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 66.5MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:57,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1727.12ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 62.7MB in the beginning and 80.1MB in the end (delta: -17.4MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2023-11-19 02:51:57,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.35ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 76.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:51:57,245 INFO L158 Benchmark]: Boogie Preprocessor took 49.66ms. Allocated memory is still 119.5MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:51:57,252 INFO L158 Benchmark]: RCFGBuilder took 679.31ms. Allocated memory is still 119.5MB. Free memory was 74.8MB in the beginning and 57.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 02:51:57,253 INFO L158 Benchmark]: CodeCheck took 1117.63ms. Allocated memory is still 119.5MB. Free memory was 57.4MB in the beginning and 66.7MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:57,254 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 119.5MB. Free memory was 66.7MB in the beginning and 66.1MB in the end (delta: 610.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:51:57,263 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, 15 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, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 1 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_53b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_53c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_add_53d_badSink(data) [L1587] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, data=2147483647, 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 0.86ms. Allocated memory is still 90.2MB. Free memory was 66.7MB in the beginning and 66.5MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1727.12ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 62.7MB in the beginning and 80.1MB in the end (delta: -17.4MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.35ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 76.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.66ms. Allocated memory is still 119.5MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.31ms. Allocated memory is still 119.5MB. Free memory was 74.8MB in the beginning and 57.4MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1117.63ms. Allocated memory is still 119.5MB. Free memory was 57.4MB in the beginning and 66.7MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 119.5MB. Free memory was 66.7MB in the beginning and 66.1MB in the end (delta: 610.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:51:57,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5afd56-bd5f-47dd-8dd2-3235ff0bbc50/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