./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --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 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 16:57:35,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:57:35,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:57:35,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:57:35,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:57:35,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:57:35,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:57:35,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:57:35,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:57:35,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:57:35,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:57:35,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:57:35,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:57:35,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:57:35,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:57:35,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:57:35,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:57:35,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:57:35,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:57:35,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:57:35,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:57:35,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:57:35,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:57:35,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:57:35,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:57:35,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:57:35,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:57:35,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:57:35,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:57:35,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:57:35,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:57:35,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:57:35,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:57:35,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:57:35,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:57:35,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:57:35,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:57:35,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:57:35,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:57:35,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:57:35,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:57:35,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:57:35,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:57:35,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:57:35,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:57:35,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:57:35,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:57:35,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:57:35,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:57:35,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:57:35,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:57:35,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:57:35,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:57:35,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:57:35,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:57:35,461 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:57:35,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:57:35,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:57:35,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:57:35,462 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:57:35,462 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:57:35,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:57:35,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:57:35,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:57:35,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:57:35,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:57:35,464 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:57:35,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:57:35,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:57:35,465 INFO L138 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_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 [2022-11-20 16:57:35,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:57:35,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:57:35,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:57:35,843 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:57:35,843 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:57:35,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2022-11-20 16:57:38,891 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:57:39,344 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:57:39,345 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2022-11-20 16:57:39,407 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/e6923d7cc/817c1dd878e5470a8826300003f497fe/FLAGc0770307a [2022-11-20 16:57:39,424 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/e6923d7cc/817c1dd878e5470a8826300003f497fe [2022-11-20 16:57:39,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:57:39,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:57:39,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:57:39,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:57:39,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:57:39,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:57:39" (1/1) ... [2022-11-20 16:57:39,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a39fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:39, skipping insertion in model container [2022-11-20 16:57:39,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:57:39" (1/1) ... [2022-11-20 16:57:39,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:57:39,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:57:39,889 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:57:40,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:57:40,433 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:57:40,453 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:57:40,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:57:40,647 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:57:40,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40 WrapperNode [2022-11-20 16:57:40,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:57:40,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:57:40,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:57:40,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:57:40,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,718 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-20 16:57:40,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:57:40,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:57:40,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:57:40,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:57:40,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:57:40,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:57:40,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:57:40,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:57:40,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:40" (1/1) ... [2022-11-20 16:57:40,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:57:40,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:57:40,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:57:40,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:57:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 16:57:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 16:57:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 16:57:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:57:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 16:57:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:57:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:57:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:57:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:57:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 16:57:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:57:41,063 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:57:41,065 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:57:41,183 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:57:41,220 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:57:41,221 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 16:57:41,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:57:41 BoogieIcfgContainer [2022-11-20 16:57:41,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:57:41,225 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:57:41,225 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:57:41,235 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:57:41,235 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:57:41" (1/1) ... [2022-11-20 16:57:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:57:41,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:57:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-11-20 16:57:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-20 16:57:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:57:41,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:57:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:57:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:57:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:57:41,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:57:41,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2022-11-20 16:57:41,760 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-20 16:57:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 16:57:41,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:57:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:57:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:57:41,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:57:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:57:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:57:41,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:57:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:57:42,017 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 16:57:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:57:42 ImpRootNode [2022-11-20 16:57:42,043 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:57:42,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:57:42,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:57:42,044 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:57:42,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:57:41" (3/4) ... [2022-11-20 16:57:42,048 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 16:57:42,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:57:42,049 INFO L158 Benchmark]: Toolchain (without parser) took 2620.89ms. Allocated memory is still 192.9MB. Free memory was 162.2MB in the beginning and 154.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-20 16:57:42,050 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:57:42,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1217.02ms. Allocated memory is still 192.9MB. Free memory was 162.2MB in the beginning and 100.5MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-20 16:57:42,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.45ms. Allocated memory is still 192.9MB. Free memory was 100.5MB in the beginning and 97.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 16:57:42,051 INFO L158 Benchmark]: Boogie Preprocessor took 24.96ms. Allocated memory is still 192.9MB. Free memory was 97.2MB in the beginning and 96.3MB in the end (delta: 958.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:57:42,052 INFO L158 Benchmark]: RCFGBuilder took 478.70ms. Allocated memory is still 192.9MB. Free memory was 96.3MB in the beginning and 80.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 16:57:42,053 INFO L158 Benchmark]: CodeCheck took 818.32ms. Allocated memory is still 192.9MB. Free memory was 80.5MB in the beginning and 155.2MB in the end (delta: -74.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:57:42,053 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 192.9MB. Free memory was 155.2MB in the beginning and 154.3MB in the end (delta: 893.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:57:42,056 INFO L339 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: 0.8s, 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, 0.0s 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, 11 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1570] 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) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=18, argc=18, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fgets_predec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_predec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1578] --data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.65ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1217.02ms. Allocated memory is still 192.9MB. Free memory was 162.2MB in the beginning and 100.5MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.45ms. Allocated memory is still 192.9MB. Free memory was 100.5MB in the beginning and 97.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.96ms. Allocated memory is still 192.9MB. Free memory was 97.2MB in the beginning and 96.3MB in the end (delta: 958.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.70ms. Allocated memory is still 192.9MB. Free memory was 96.3MB in the beginning and 80.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 818.32ms. Allocated memory is still 192.9MB. Free memory was 80.5MB in the beginning and 155.2MB in the end (delta: -74.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 192.9MB. Free memory was 155.2MB in the beginning and 154.3MB in the end (delta: 893.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 16:57:42,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --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 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 16:57:44,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:57:44,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:57:44,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:57:44,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:57:44,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:57:44,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:57:44,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:57:44,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:57:44,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:57:44,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:57:44,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:57:44,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:57:44,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:57:44,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:57:44,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:57:44,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:57:44,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:57:44,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:57:44,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:57:44,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:57:44,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:57:44,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:57:44,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:57:44,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:57:44,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:57:44,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:57:44,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:57:44,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:57:44,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:57:44,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:57:44,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:57:44,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:57:44,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:57:44,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:57:44,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:57:44,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:57:44,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:57:44,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:57:44,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:57:44,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:57:44,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-20 16:57:44,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:57:44,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:57:44,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:57:44,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:57:44,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:57:44,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:57:44,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:57:44,540 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:57:44,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:57:44,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:57:44,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:57:44,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:57:44,541 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 16:57:44,541 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 16:57:44,542 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:57:44,542 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 16:57:44,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:57:44,542 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:57:44,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:57:44,543 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:57:44,543 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:57:44,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:57:44,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:57:44,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:57:44,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:57:44,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:57:44,545 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 16:57:44,545 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 16:57:44,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:57:44,546 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-20 16:57:44,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 16:57:44,546 INFO L138 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_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4669188c2b812b949944765e4a42b73f4c1b71352a3ff8223dd1434f62c953f1 [2022-11-20 16:57:44,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:57:44,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:57:44,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:57:44,931 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:57:44,931 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:57:44,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2022-11-20 16:57:48,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:57:48,552 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:57:48,553 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_bad.i [2022-11-20 16:57:48,586 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/ce15a4148/1f16b47aee734a3c81202d8a80cda940/FLAG049af2a45 [2022-11-20 16:57:48,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c060828-6a8d-4dbf-896e-3e941db0f28f/bin/ukojak-pZX7IvK2PQ/data/ce15a4148/1f16b47aee734a3c81202d8a80cda940 [2022-11-20 16:57:48,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:57:48,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:57:48,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:57:48,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:57:48,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:57:48,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:57:48" (1/1) ... [2022-11-20 16:57:48,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@643c8217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:57:48, skipping insertion in model container [2022-11-20 16:57:48,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:57:48" (1/1) ... [2022-11-20 16:57:48,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:57:48,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:57:49,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:57:49,518 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 16:57:49,527 INFO L158 Benchmark]: Toolchain (without parser) took 910.17ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 80.5MB in the end (delta: -30.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-20 16:57:49,528 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:57:49,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 907.69ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 49.9MB in the beginning and 80.5MB in the end (delta: -30.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-11-20 16:57:49,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 907.69ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 49.9MB in the beginning and 80.5MB in the end (delta: -30.6MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.