./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b03417044f373c008ff91de15a64d7cc60a5998b199ec438fd4bdaa7bf23faf0 --- 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-38b53e6 [2022-11-25 17:13:34,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:13:34,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:13:34,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:13:34,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:13:34,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:13:34,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:13:34,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:13:34,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:13:34,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:13:34,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:13:34,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:13:34,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:13:34,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:13:34,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:13:34,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:13:34,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:13:34,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:13:34,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:13:34,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:13:34,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:13:34,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:13:34,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:13:34,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:13:34,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:13:34,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:13:34,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:13:34,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:13:34,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:13:34,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:13:34,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:13:34,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:13:34,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:13:34,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:13:34,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:13:34,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:13:34,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:13:34,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:13:34,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:13:34,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:13:34,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:13:34,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:13:34,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:13:34,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:13:34,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:13:34,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:13:34,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:13:34,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:13:34,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:13:34,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:13:34,855 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:13:34,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:13:34,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:13:34,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:13:34,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:13:34,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:13:34,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:13:34,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:13:34,858 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:13:34,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:13:34,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:13:34,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:13:34,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:13:34,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:13:34,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:13:34,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:34,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:13:34,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:13:34,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:13:34,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:13:34,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:13:34,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:13:34,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:13:34,863 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:13:34,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:13:34,864 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b03417044f373c008ff91de15a64d7cc60a5998b199ec438fd4bdaa7bf23faf0 [2022-11-25 17:13:35,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:13:35,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:13:35,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:13:35,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:13:35,296 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:13:35,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_41_bad.i [2022-11-25 17:13:39,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:13:39,507 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:13:39,508 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_41_bad.i [2022-11-25 17:13:39,550 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/data/834285b71/73c231a914964237a1f8b75270095a56/FLAGe3b9bfdeb [2022-11-25 17:13:39,580 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/data/834285b71/73c231a914964237a1f8b75270095a56 [2022-11-25 17:13:39,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:13:39,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:13:39,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:39,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:13:39,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:13:39,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:39" (1/1) ... [2022-11-25 17:13:39,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6998e6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:39, skipping insertion in model container [2022-11-25 17:13:39,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:13:39" (1/1) ... [2022-11-25 17:13:39,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:13:39,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:13:40,247 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:13:40,868 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:13:40,876 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:13:40,879 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:13:40,883 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:13:40,884 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:13:40,922 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:13:40,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:40,936 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:13:40,965 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:13:41,045 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:13:41,058 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:13:41,061 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:13:41,069 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:13:41,071 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:13:41,089 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:13:41,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:13:41,267 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:13:41,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41 WrapperNode [2022-11-25 17:13:41,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:13:41,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:41,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:13:41,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:13:41,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,336 INFO L138 Inliner]: procedures = 500, calls = 60, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2022-11-25 17:13:41,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:13:41,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:13:41,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:13:41,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:13:41,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:13:41,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:13:41,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:13:41,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:13:41,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (1/1) ... [2022-11-25 17:13:41,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:13:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:41,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:13:41,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:13:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:13:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:13:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:13:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:13:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:13:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:13:41,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:13:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:13:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:13:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:13:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:13:41,774 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:13:41,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:13:41,997 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:13:42,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:13:42,013 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:13:42,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:42 BoogieIcfgContainer [2022-11-25 17:13:42,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:13:42,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:13:42,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:13:42,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:13:42,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:13:39" (1/3) ... [2022-11-25 17:13:42,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7717936b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:42, skipping insertion in model container [2022-11-25 17:13:42,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:13:41" (2/3) ... [2022-11-25 17:13:42,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7717936b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:13:42, skipping insertion in model container [2022-11-25 17:13:42,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:42" (3/3) ... [2022-11-25 17:13:42,027 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_41_bad.i [2022-11-25 17:13:42,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:13:42,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:13:42,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:13:42,151 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4af20d5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:13:42,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:13:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:13:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:13:42,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:42,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:42,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:13:42,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:42,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1855260787, now seen corresponding path program 1 times [2022-11-25 17:13:42,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:42,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252729582] [2022-11-25 17:13:42,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:42,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:13:42,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:13:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:13:42,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:13:42,571 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:13:42,573 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:13:42,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:13:42,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:13:42,583 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:13:42,591 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:13:42,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:13:42 BoogieIcfgContainer [2022-11-25 17:13:42,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:13:42,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:13:42,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:13:42,640 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:13:42,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:13:42" (3/4) ... [2022-11-25 17:13:42,651 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:13:42,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:13:42,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:13:42,719 INFO L158 Benchmark]: Toolchain (without parser) took 3132.29ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 89.4MB in the end (delta: 29.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,719 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:13:42,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1678.74ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 124.9MB in the end (delta: -6.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.16ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 122.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,721 INFO L158 Benchmark]: Boogie Preprocessor took 53.40ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,722 INFO L158 Benchmark]: RCFGBuilder took 623.79ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 108.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,723 INFO L158 Benchmark]: TraceAbstraction took 619.76ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 91.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,723 INFO L158 Benchmark]: Witness Printer took 78.03ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:13:42,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1678.74ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 124.9MB in the end (delta: -6.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.16ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 122.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.40ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 623.79ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 108.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 619.76ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 91.4MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 78.03ms. Allocated memory is still 167.8MB. Free memory was 91.4MB in the beginning and 89.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1551]: integer overflow possible integer overflow possible We found a 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_fscanf_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] EXPR \read(data) [L1561] CALL badSink(data) [L1551] --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] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:13:42,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96be39ee-b80f-4d62-8699-21a9bda22e4c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)