./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 289769868df1af29adfcd70358e97fde8558d98da7a780345593d0ecab377e42 --- 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 12:32:12,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:32:12,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:32:12,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:32:12,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:32:12,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:32:12,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:32:12,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:32:12,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:32:12,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:32:12,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:32:12,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:32:12,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:32:12,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:32:12,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:32:12,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:32:12,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:32:12,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:32:12,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:32:12,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:32:12,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:32:12,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:32:12,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:32:12,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:32:12,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:32:12,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:32:12,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:32:12,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:32:12,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:32:12,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:32:12,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:32:12,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:32:12,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:32:12,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:32:12,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:32:12,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:32:12,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:32:12,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:32:12,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:32:12,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:32:12,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:32:12,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:32:12,820 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:32:12,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:32:12,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:32:12,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:32:12,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:32:12,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:32:12,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:32:12,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:32:12,822 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:32:12,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:32:12,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:32:12,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:32:12,824 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:32:12,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:32:12,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:32:12,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:32:12,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:32:12,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:32:12,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:32:12,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:32:12,826 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:32:12,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:32:12,826 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:32:12,826 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_43e11fd8-a46e-4f59-84b7-cf79993946cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289769868df1af29adfcd70358e97fde8558d98da7a780345593d0ecab377e42 [2022-12-13 12:32:13,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:32:13,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:32:13,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:32:13,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:32:13,046 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:32:13,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:15,673 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:32:15,922 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:32:15,922 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:15,936 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/ebf856e44/8021d26e523f4a978501631882240c2f/FLAG7af616f74 [2022-12-13 12:32:15,947 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/ebf856e44/8021d26e523f4a978501631882240c2f [2022-12-13 12:32:15,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:32:15,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:32:15,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:15,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:32:15,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:32:15,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:15" (1/1) ... [2022-12-13 12:32:15,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e481f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:15, skipping insertion in model container [2022-12-13 12:32:15,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:15" (1/1) ... [2022-12-13 12:32:15,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:32:15,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:32:16,236 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:32:16,520 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:32:16,524 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:16,525 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:16,527 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:16,527 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:16,543 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:32:16,547 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:32:16,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:16,555 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:32:16,568 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:32:16,598 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:32:16,600 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:16,600 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:16,602 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:16,602 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:16,605 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:32:16,606 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:32:16,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:16,704 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:32:16,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16 WrapperNode [2022-12-13 12:32:16,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:16,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:16,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:32:16,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:32:16,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,749 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-12-13 12:32:16,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:16,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:32:16,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:32:16,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:32:16,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:32:16,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:32:16,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:32:16,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:32:16,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (1/1) ... [2022-12-13 12:32:16,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:32:16,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:32:16,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:32:16,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:32:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:32:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:32:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:32:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:32:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:32:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:32:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:32:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:32:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:32:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:32:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:32:16,940 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:32:16,942 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:32:17,033 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:32:17,037 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:32:17,038 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:32:17,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:17 BoogieIcfgContainer [2022-12-13 12:32:17,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:32:17,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:32:17,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:32:17,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:32:17,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:32:15" (1/3) ... [2022-12-13 12:32:17,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4189f2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:17, skipping insertion in model container [2022-12-13 12:32:17,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:16" (2/3) ... [2022-12-13 12:32:17,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4189f2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:17, skipping insertion in model container [2022-12-13 12:32:17,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:17" (3/3) ... [2022-12-13 12:32:17,045 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:17,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:32:17,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:32:17,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:32:17,097 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;@56a8149e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:32:17,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:32:17,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 12:32:17,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:32:17,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:32:17,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:32:17,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:32:17,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash 588292234, now seen corresponding path program 1 times [2022-12-13 12:32:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:17,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982081770] [2022-12-13 12:32:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:32:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:17,320 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 12:32:17,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:32:17,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982081770] [2022-12-13 12:32:17,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982081770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:32:17,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:32:17,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:32:17,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685617768] [2022-12-13 12:32:17,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:32:17,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:32:17,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:32:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:32:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:17,360 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12:32:17,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:32:17,391 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-13 12:32:17,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:32:17,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-13 12:32:17,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:32:17,398 INFO L225 Difference]: With dead ends: 29 [2022-12-13 12:32:17,398 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 12:32:17,400 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 12:32:17,402 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:32:17,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:32:17,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 12:32:17,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 12:32:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 12:32:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 12:32:17,437 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 12:32:17,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:32:17,439 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 12:32:17,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12:32:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 12:32:17,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:32:17,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:32:17,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:32:17,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:32:17,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:32:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1057190127, now seen corresponding path program 1 times [2022-12-13 12:32:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:32:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761339293] [2022-12-13 12:32:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:32:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:17,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:17,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:32:17,508 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:32:17,509 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:32:17,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:32:17,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:32:17,515 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:32:17,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:32:17,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:32:17 BoogieIcfgContainer [2022-12-13 12:32:17,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:32:17,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:32:17,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:32:17,541 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:32:17,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:17" (3/4) ... [2022-12-13 12:32:17,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:32:17,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:32:17,545 INFO L158 Benchmark]: Toolchain (without parser) took 1594.66ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.7MB in the beginning and 101.0MB in the end (delta: -12.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,545 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:32:17,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 754.57ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.3MB in the beginning and 99.2MB in the end (delta: -10.9MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 96.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,546 INFO L158 Benchmark]: Boogie Preprocessor took 24.18ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,547 INFO L158 Benchmark]: RCFGBuilder took 265.04ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 81.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,547 INFO L158 Benchmark]: TraceAbstraction took 499.47ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 102.1MB in the end (delta: -21.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:32:17,548 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 155.2MB. Free memory was 102.1MB in the beginning and 101.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:17,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 102.8MB in the beginning and 102.7MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 754.57ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 88.3MB in the beginning and 99.2MB in the end (delta: -10.9MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 96.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.18ms. Allocated memory is still 155.2MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.04ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 81.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 499.47ms. Allocated memory is still 155.2MB. Free memory was 81.1MB in the beginning and 102.1MB in the end (delta: -21.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 155.2MB. Free memory was 102.1MB in the beginning and 101.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741826:1073741829}, argv={1073741826:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE190_Integer_Overflow__int_fgets_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1563] COND TRUE data > 0 VAL [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] [L1565] data * 2 VAL [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: 1565]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 6 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=23occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 12:32:17,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 289769868df1af29adfcd70358e97fde8558d98da7a780345593d0ecab377e42 --- 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 12:32:19,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:32:19,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:32:19,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:32:19,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:32:19,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:32:19,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:32:19,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:32:19,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:32:19,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:32:19,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:32:19,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:32:19,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:32:19,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:32:19,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:32:19,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:32:19,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:32:19,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:32:19,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:32:19,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:32:19,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:32:19,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:32:19,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:32:19,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:32:19,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:32:19,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:32:19,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:32:19,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:32:19,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:32:19,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:32:19,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:32:19,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:32:19,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:32:19,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:32:19,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:32:19,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:32:19,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:32:19,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:32:19,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:32:19,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:32:19,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:32:19,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:32:19,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:32:19,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:32:19,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:32:19,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:32:19,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:32:19,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:32:19,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:32:19,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:32:19,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:32:19,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:32:19,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:32:19,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:32:19,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:32:19,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:32:19,339 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:32:19,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:32:19,339 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:32:19,339 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:32:19,349 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_43e11fd8-a46e-4f59-84b7-cf79993946cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289769868df1af29adfcd70358e97fde8558d98da7a780345593d0ecab377e42 [2022-12-13 12:32:19,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:32:19,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:32:19,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:32:19,590 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:32:19,590 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:32:19,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:22,270 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:32:22,470 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:32:22,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:22,484 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/94b0aefdd/2fbafaf4bfb147da9d4ca38ab9638b15/FLAGf92aa0f18 [2022-12-13 12:32:22,494 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/data/94b0aefdd/2fbafaf4bfb147da9d4ca38ab9638b15 [2022-12-13 12:32:22,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:32:22,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:32:22,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:22,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:32:22,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:32:22,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:22" (1/1) ... [2022-12-13 12:32:22,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74244dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:22, skipping insertion in model container [2022-12-13 12:32:22,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:32:22" (1/1) ... [2022-12-13 12:32:22,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:32:22,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:32:22,771 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:32:23,083 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:32:23,087 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:23,088 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:23,090 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:23,090 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:23,105 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:32:23,109 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:32:23,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:23,122 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:32:23,136 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:32:23,169 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:32:23,170 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:23,171 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:32:23,172 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:23,173 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:32:23,175 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:32:23,177 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:32:23,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:32:23,254 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:32:23,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23 WrapperNode [2022-12-13 12:32:23,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:32:23,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:23,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:32:23,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:32:23,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,304 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2022-12-13 12:32:23,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:32:23,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:32:23,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:32:23,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:32:23,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:32:23,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:32:23,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:32:23,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:32:23,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (1/1) ... [2022-12-13 12:32:23,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:32:23,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:32:23,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:32:23,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:32:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:32:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:32:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:32:23,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:32:23,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:32:23,527 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:32:23,528 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:32:23,633 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:32:23,638 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:32:23,638 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:32:23,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:23 BoogieIcfgContainer [2022-12-13 12:32:23,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:32:23,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:32:23,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:32:23,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:32:23,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:32:22" (1/3) ... [2022-12-13 12:32:23,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221b73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:23, skipping insertion in model container [2022-12-13 12:32:23,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:32:23" (2/3) ... [2022-12-13 12:32:23,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221b73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:32:23, skipping insertion in model container [2022-12-13 12:32:23,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:23" (3/3) ... [2022-12-13 12:32:23,647 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_01_bad.i [2022-12-13 12:32:23,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:32:23,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:32:23,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:32:23,700 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;@5f3ab228, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:32:23,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:32:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 12:32:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:32:23,709 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:32:23,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:32:23,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:32:23,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:23,719 INFO L85 PathProgramCache]: Analyzing trace with hash 588292234, now seen corresponding path program 1 times [2022-12-13 12:32:23,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:32:23,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767649596] [2022-12-13 12:32:23,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:23,732 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 12:32:23,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:32:23,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:23,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:32:23,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:32:23,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:32:23,901 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 12:32:23,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:32:23,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:32:23,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767649596] [2022-12-13 12:32:23,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767649596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:32:23,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:32:23,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:32:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402747181] [2022-12-13 12:32:23,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:32:23,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:32:23,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:32:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:32:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:32:23,935 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 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 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12:32:23,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:32:23,970 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-13 12:32:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:32:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-13 12:32:23,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:32:23,978 INFO L225 Difference]: With dead ends: 29 [2022-12-13 12:32:23,978 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 12:32:23,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 12:32:23,983 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:32:23,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:32:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 12:32:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 12:32:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 12:32:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 12:32:24,011 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 12:32:24,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:32:24,012 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 12:32:24,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12:32:24,012 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 12:32:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 12:32:24,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:32:24,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:32:24,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:32:24,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:32:24,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1057190127, now seen corresponding path program 1 times [2022-12-13 12:32:24,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:32:24,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779453199] [2022-12-13 12:32:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:32:24,215 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 12:32:24,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:32:24,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:24,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:32:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:32:24,344 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:32:24,344 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:32:24,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:32:24,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:32:24,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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 12:32:24,558 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:32:24,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:32:24,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:32:24 BoogieIcfgContainer [2022-12-13 12:32:24,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:32:24,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:32:24,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:32:24,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:32:24,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:32:23" (3/4) ... [2022-12-13 12:32:24,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:32:24,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:32:24,642 INFO L158 Benchmark]: Toolchain (without parser) took 2143.65ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 60.7MB in the beginning and 60.0MB in the end (delta: 703.3kB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,643 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 31.4MB in the beginning and 31.4MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:32:24,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.61ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 46.2MB in the end (delta: 14.3MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 94.4MB. Free memory was 46.2MB in the beginning and 43.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,646 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 94.4MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,647 INFO L158 Benchmark]: RCFGBuilder took 306.38ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 41.2MB in the beginning and 75.4MB in the end (delta: -34.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,648 INFO L158 Benchmark]: TraceAbstraction took 986.82ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 60.1MB in the end (delta: 14.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-12-13 12:32:24,648 INFO L158 Benchmark]: Witness Printer took 9.94ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 99.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:32:24,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory was 31.4MB in the beginning and 31.4MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.61ms. Allocated memory is still 94.4MB. Free memory was 60.5MB in the beginning and 46.2MB in the end (delta: 14.3MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 94.4MB. Free memory was 46.2MB in the beginning and 43.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 94.4MB. Free memory was 43.3MB in the beginning and 41.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.38ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 41.2MB in the beginning and 75.4MB in the end (delta: -34.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * TraceAbstraction took 986.82ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 60.1MB in the end (delta: 14.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 9.94ms. Allocated memory is still 113.2MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 99.5kB). 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: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE190_Integer_Overflow__int_fgets_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1563] COND TRUE data > 0 VAL [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] [L1565] data * 2 VAL [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: 1565]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 67 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 12:32:24,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e11fd8-a46e-4f59-84b7-cf79993946cd/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