./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8 --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 5c407d8553d1df41f739c7ed318245748550b3a8d67cbf27f9230839973b15ef --- 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-2329fc7 [2022-12-13 20:38:38,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:38:38,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:38:38,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:38:38,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:38:38,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:38:38,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:38:38,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:38:38,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:38:38,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:38:38,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:38:38,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:38:38,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:38:38,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:38:38,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:38:38,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:38:38,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:38:38,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:38:38,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:38:38,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:38:38,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:38:38,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:38:38,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:38:38,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:38:38,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:38:38,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:38:38,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:38:38,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:38:38,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:38:38,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:38:38,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:38:38,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:38:38,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:38:38,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:38:38,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:38:38,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:38:38,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:38:38,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:38:38,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:38:38,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:38:38,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:38:38,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:38:38,770 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:38:38,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:38:38,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:38:38,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:38:38,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:38:38,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:38:38,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:38:38,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:38:38,772 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:38:38,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:38:38,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:38:38,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:38:38,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:38:38,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:38:38,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:38:38,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:38:38,774 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:38:38,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:38:38,774 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:38:38,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:38:38,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:38:38,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:38:38,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:38:38,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:38,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:38:38,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:38:38,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:38:38,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:38:38,777 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:38:38,777 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_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c407d8553d1df41f739c7ed318245748550b3a8d67cbf27f9230839973b15ef [2022-12-13 20:38:38,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:38:38,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:38:38,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:38:38,993 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:38:38,994 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:38:38,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:41,557 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:38:41,777 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:38:41,777 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:41,791 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/dfa988cb3/fd4618a12cb048a1a6d64f6aca3d8a50/FLAG7d6ddac6d [2022-12-13 20:38:41,802 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/dfa988cb3/fd4618a12cb048a1a6d64f6aca3d8a50 [2022-12-13 20:38:41,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:38:41,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:38:41,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:41,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:38:41,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:38:41,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:41" (1/1) ... [2022-12-13 20:38:41,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a993aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:41, skipping insertion in model container [2022-12-13 20:38:41,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:41" (1/1) ... [2022-12-13 20:38:41,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:38:41,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:38:42,109 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:38:42,371 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:38:42,375 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:42,377 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:42,380 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:42,380 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:42,404 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:38:42,407 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:38:42,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:42,418 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:38:42,438 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:38:42,473 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:38:42,474 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:42,475 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:42,476 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:42,477 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:42,480 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:38:42,481 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:38:42,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:42,547 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:38:42,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42 WrapperNode [2022-12-13 20:38:42,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:42,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:42,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:38:42,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:38:42,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,584 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-13 20:38:42,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:42,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:38:42,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:38:42,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:38:42,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:38:42,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:38:42,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:38:42,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:38:42,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (1/1) ... [2022-12-13 20:38:42,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:42,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:38:42,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:38:42,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:38:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:38:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:38:42,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:38:42,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:38:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:38:42,755 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:38:42,756 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:38:42,843 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:38:42,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:38:42,849 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:38:42,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:42 BoogieIcfgContainer [2022-12-13 20:38:42,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:38:42,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:38:42,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:38:42,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:38:42,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:38:41" (1/3) ... [2022-12-13 20:38:42,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317d6b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:42, skipping insertion in model container [2022-12-13 20:38:42,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:42" (2/3) ... [2022-12-13 20:38:42,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317d6b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:42, skipping insertion in model container [2022-12-13 20:38:42,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:42" (3/3) ... [2022-12-13 20:38:42,860 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:42,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:38:42,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:38:42,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:38:42,922 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;@20fe5d2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:38:42,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:38:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:38:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 20:38:42,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:38:42,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:42,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:38:42,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-12-13 20:38:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:42,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170450365] [2022-12-13 20:38:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:38:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:38:43,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:38:43,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170450365] [2022-12-13 20:38:43,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170450365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:43,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:43,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:38:43,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231649648] [2022-12-13 20:38:43,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:43,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:38:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:38:43,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:38:43,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:38:43,246 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:38:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:38:43,273 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-12-13 20:38:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:38:43,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 20:38:43,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:38:43,279 INFO L225 Difference]: With dead ends: 32 [2022-12-13 20:38:43,279 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 20:38:43,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:38:43,283 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 9 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:38:43,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 53 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:38:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 20:38:43,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 20:38:43,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-13 20:38:43,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-13 20:38:43,309 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2022-12-13 20:38:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:38:43,310 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-13 20:38:43,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:38:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-13 20:38:43,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:38:43,311 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:38:43,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:43,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:38:43,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:38:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:43,312 INFO L85 PathProgramCache]: Analyzing trace with hash 503399165, now seen corresponding path program 1 times [2022-12-13 20:38:43,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:38:43,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821047112] [2022-12-13 20:38:43,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:43,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:38:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:38:43,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:38:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:38:43,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:38:43,378 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:38:43,379 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:38:43,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:38:43,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:38:43,385 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:38:43,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:38:43,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:38:43 BoogieIcfgContainer [2022-12-13 20:38:43,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:38:43,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:38:43,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:38:43,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:38:43,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:42" (3/4) ... [2022-12-13 20:38:43,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:38:43,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:38:43,412 INFO L158 Benchmark]: Toolchain (without parser) took 1607.37ms. Allocated memory is still 167.8MB. Free memory was 100.6MB in the beginning and 124.0MB in the end (delta: -23.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:43,412 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory was 145.0MB in the beginning and 144.9MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:43,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.58ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 85.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-12-13 20:38:43,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.30ms. Allocated memory is still 167.8MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:38:43,413 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 167.8MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:43,414 INFO L158 Benchmark]: RCFGBuilder took 248.44ms. Allocated memory is still 167.8MB. Free memory was 81.3MB in the beginning and 68.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 20:38:43,414 INFO L158 Benchmark]: TraceAbstraction took 554.98ms. Allocated memory is still 167.8MB. Free memory was 67.5MB in the beginning and 124.0MB in the end (delta: -56.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:43,414 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 167.8MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:43,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory was 145.0MB in the beginning and 144.9MB in the end (delta: 82.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.58ms. Allocated memory is still 167.8MB. Free memory was 100.3MB in the beginning and 85.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.30ms. Allocated memory is still 167.8MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 167.8MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.44ms. Allocated memory is still 167.8MB. Free memory was 81.3MB in the beginning and 68.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 554.98ms. Allocated memory is still 167.8MB. Free memory was 67.5MB in the beginning and 124.0MB in the end (delta: -56.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 167.8MB. Free memory is still 124.0MB. There was no memory consumed. 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 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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); [L1548] static int badStatic = 0; VAL [badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [badStatic=0, 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) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_multiply_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [\old(data)=1073741824, badStatic=1, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data > 0 VAL [\old(data)=1073741824, badStatic=1, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [\old(data)=1073741824, badStatic=1, data=1073741824, 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: 1555]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:38:43,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8 --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 5c407d8553d1df41f739c7ed318245748550b3a8d67cbf27f9230839973b15ef --- 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-2329fc7 [2022-12-13 20:38:45,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:38:45,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:38:45,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:38:45,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:38:45,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:38:45,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:38:45,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:38:45,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:38:45,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:38:45,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:38:45,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:38:45,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:38:45,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:38:45,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:38:45,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:38:45,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:38:45,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:38:45,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:38:45,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:38:45,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:38:45,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:38:45,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:38:45,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:38:45,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:38:45,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:38:45,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:38:45,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:38:45,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:38:45,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:38:45,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:38:45,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:38:45,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:38:45,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:38:45,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:38:45,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:38:45,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:38:45,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:38:45,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:38:45,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:38:45,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:38:45,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:38:45,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:38:45,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:38:45,300 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:38:45,300 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:38:45,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:38:45,301 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:38:45,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:38:45,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:38:45,301 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:38:45,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:38:45,302 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:38:45,303 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:38:45,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:38:45,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:38:45,303 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:38:45,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:38:45,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:38:45,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:38:45,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:38:45,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:45,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:38:45,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:38:45,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:38:45,306 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:38:45,306 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:38:45,306 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_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c407d8553d1df41f739c7ed318245748550b3a8d67cbf27f9230839973b15ef [2022-12-13 20:38:45,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:38:45,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:38:45,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:38:45,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:38:45,565 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:38:45,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:48,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:38:48,387 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:38:48,388 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:48,405 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/100f5ec23/2c59d9557ec74b7eb202169fd8251ba3/FLAG4c1b92d24 [2022-12-13 20:38:48,417 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/data/100f5ec23/2c59d9557ec74b7eb202169fd8251ba3 [2022-12-13 20:38:48,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:38:48,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:38:48,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:48,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:38:48,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:38:48,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:48" (1/1) ... [2022-12-13 20:38:48,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1328b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:48, skipping insertion in model container [2022-12-13 20:38:48,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:38:48" (1/1) ... [2022-12-13 20:38:48,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:38:48,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:38:48,718 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:38:49,042 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:38:49,046 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:49,048 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:49,049 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:49,050 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:49,067 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:38:49,069 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:38:49,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:49,081 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:38:49,095 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:38:49,132 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:38:49,133 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:49,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:38:49,135 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:49,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:38:49,140 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:38:49,141 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:38:49,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:38:49,230 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:38:49,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49 WrapperNode [2022-12-13 20:38:49,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:38:49,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:49,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:38:49,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:38:49,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,269 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 20:38:49,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:38:49,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:38:49,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:38:49,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:38:49,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:38:49,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:38:49,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:38:49,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:38:49,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (1/1) ... [2022-12-13 20:38:49,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:38:49,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:38:49,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:38:49,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:38:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:38:49,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:38:49,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 20:38:49,469 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:38:49,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:38:49,590 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:38:49,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:38:49,596 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:38:49,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:49 BoogieIcfgContainer [2022-12-13 20:38:49,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:38:49,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:38:49,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:38:49,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:38:49,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:38:48" (1/3) ... [2022-12-13 20:38:49,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e10468c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:49, skipping insertion in model container [2022-12-13 20:38:49,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:38:49" (2/3) ... [2022-12-13 20:38:49,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e10468c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:38:49, skipping insertion in model container [2022-12-13 20:38:49,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:49" (3/3) ... [2022-12-13 20:38:49,606 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_21_bad.i [2022-12-13 20:38:49,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:38:49,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:38:49,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:38:49,659 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;@1b01e6de, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:38:49,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:38:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:38:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 20:38:49,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:38:49,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:49,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:38:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-12-13 20:38:49,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:38:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523343801] [2022-12-13 20:38:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:49,682 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:38:49,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:38:49,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:38:49,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 20:38:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:38:49,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:38:49,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:38:49,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:38:49,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:38:49,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:38:49,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523343801] [2022-12-13 20:38:49,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523343801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:38:49,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:38:49,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:38:49,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295211180] [2022-12-13 20:38:49,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:38:49,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:38:49,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:38:49,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:38:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:38:49,881 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:38:49,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:38:49,907 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-12-13 20:38:49,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:38:49,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 20:38:49,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:38:49,914 INFO L225 Difference]: With dead ends: 32 [2022-12-13 20:38:49,914 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 20:38:49,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:38:49,918 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:38:49,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:38:49,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 20:38:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 20:38:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-13 20:38:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-13 20:38:49,945 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2022-12-13 20:38:49,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:38:49,946 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-13 20:38:49,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:38:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-13 20:38:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 20:38:49,947 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:38:49,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:38:49,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:38:50,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:38:50,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:38:50,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:38:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 503399165, now seen corresponding path program 1 times [2022-12-13 20:38:50,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:38:50,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979839216] [2022-12-13 20:38:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:38:50,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:38:50,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:38:50,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 20:38:50,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 20:38:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:38:50,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:38:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:38:50,408 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:38:50,408 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:38:50,410 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:38:50,411 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:38:50,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 20:38:50,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 20:38:50,622 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:38:50,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:38:50,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:38:50 BoogieIcfgContainer [2022-12-13 20:38:50,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:38:50,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:38:50,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:38:50,706 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:38:50,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:38:49" (3/4) ... [2022-12-13 20:38:50,712 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:38:50,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:38:50,714 INFO L158 Benchmark]: Toolchain (without parser) took 2292.65ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 43.4MB in the beginning and 39.0MB in the end (delta: 4.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,715 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:50,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.58ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 43.2MB in the beginning and 39.5MB in the end (delta: 3.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.16ms. Allocated memory is still 88.1MB. Free memory was 39.5MB in the beginning and 36.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,719 INFO L158 Benchmark]: Boogie Preprocessor took 31.99ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 61.5MB in the end (delta: -24.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,720 INFO L158 Benchmark]: RCFGBuilder took 295.86ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 47.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,721 INFO L158 Benchmark]: TraceAbstraction took 1103.14ms. Allocated memory is still 88.1MB. Free memory was 46.8MB in the beginning and 39.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-12-13 20:38:50,722 INFO L158 Benchmark]: Witness Printer took 7.55ms. Allocated memory is still 88.1MB. Free memory was 39.5MB in the beginning and 39.0MB in the end (delta: 483.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:38:50,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.58ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 43.2MB in the beginning and 39.5MB in the end (delta: 3.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.16ms. Allocated memory is still 88.1MB. Free memory was 39.5MB in the beginning and 36.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.99ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 61.5MB in the end (delta: -24.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 295.86ms. Allocated memory is still 88.1MB. Free memory was 61.5MB in the beginning and 47.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1103.14ms. Allocated memory is still 88.1MB. Free memory was 46.8MB in the beginning and 39.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 7.55ms. Allocated memory is still 88.1MB. Free memory was 39.5MB in the beginning and 39.0MB in the end (delta: 483.3kB). There was no memory consumed. 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 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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); [L1548] static int badStatic = 0; VAL [badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [badStatic=0, 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) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, badStatic=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_multiply_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [\old(data)=1073741824, badStatic=1, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE data > 0 VAL [\old(data)=1073741824, badStatic=1, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data * 2 VAL [\old(data)=1073741824, badStatic=1, data=1073741824, 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: 1555]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:38:50,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f284f76e-43b5-48e1-8ccc-53e498ee9f6c/bin/uautomizer-uyxdKDjOR8/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 Result: UNKNOWN: Overapproximated counterexample