./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 6a8251e3365fac549df161550d2b80eb2cbf186150600f9a57808306a6c46d65 --- 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 11:10:36,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:10:36,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:10:36,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:10:36,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:10:36,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:10:36,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:10:36,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:10:36,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:10:36,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:10:36,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:10:36,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:10:36,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:10:36,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:10:36,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:10:36,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:10:36,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:10:36,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:10:36,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:10:36,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:10:36,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:10:36,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:10:36,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:10:36,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:10:36,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:10:36,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:10:36,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:10:36,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:10:36,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:10:36,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:10:36,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:10:36,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:10:36,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:10:36,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:10:36,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:10:36,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:10:36,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:10:36,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:10:36,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:10:36,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:10:36,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:10:36,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:10:36,842 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:10:36,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:10:36,843 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:10:36,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:10:36,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:10:36,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:10:36,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:10:36,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:10:36,844 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:10:36,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:10:36,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:10:36,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:10:36,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:10:36,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:36,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:10:36,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:10:36,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:10:36,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:10:36,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:10:36,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:10:36,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:10:36,848 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:10:36,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:10:36,848 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:10:36,849 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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a8251e3365fac549df161550d2b80eb2cbf186150600f9a57808306a6c46d65 [2022-12-13 11:10:37,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:10:37,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:10:37,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:10:37,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:10:37,059 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:10:37,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:39,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:10:39,963 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:10:39,964 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:39,977 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/09d65a1a8/6308bf7264b34758ad62b29818a7d19e/FLAGab99e3421 [2022-12-13 11:10:39,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/09d65a1a8/6308bf7264b34758ad62b29818a7d19e [2022-12-13 11:10:39,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:10:39,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:10:39,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:39,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:10:39,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:10:39,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:39" (1/1) ... [2022-12-13 11:10:39,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1478d6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:39, skipping insertion in model container [2022-12-13 11:10:39,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:39" (1/1) ... [2022-12-13 11:10:40,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:10:40,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:10:40,276 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:10:40,558 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:10:40,562 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:40,564 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:40,565 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:40,566 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:40,581 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:10:40,585 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:10:40,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:40,594 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:10:40,607 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:10:40,637 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:10:40,639 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:40,639 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:40,641 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:40,641 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:40,644 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:10:40,646 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:10:40,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:40,713 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:10:40,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40 WrapperNode [2022-12-13 11:10:40,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:40,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:40,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:10:40,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:10:40,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,750 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-12-13 11:10:40,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:40,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:10:40,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:10:40,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:10:40,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:10:40,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:10:40,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:10:40,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:10:40,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (1/1) ... [2022-12-13 11:10:40,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:40,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:10:40,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:10:40,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:10:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:10:40,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:10:40,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:10:40,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:10:40,957 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:10:40,959 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:10:41,048 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:10:41,053 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:10:41,053 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:10:41,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:41 BoogieIcfgContainer [2022-12-13 11:10:41,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:10:41,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:10:41,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:10:41,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:10:41,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:10:39" (1/3) ... [2022-12-13 11:10:41,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5ef59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:41, skipping insertion in model container [2022-12-13 11:10:41,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:40" (2/3) ... [2022-12-13 11:10:41,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5ef59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:41, skipping insertion in model container [2022-12-13 11:10:41,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:41" (3/3) ... [2022-12-13 11:10:41,063 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:41,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:10:41,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:10:41,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:10:41,121 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;@4db0b39a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:10:41,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:10:41,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 11:10:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:10:41,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:10:41,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:10:41,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:10:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:10:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 11:10:41,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:10:41,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097294066] [2022-12-13 11:10:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:10:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:10:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:10:41,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:10:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:10:41,398 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 11:10:41,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:10:41,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097294066] [2022-12-13 11:10:41,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097294066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:10:41,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:10:41,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:10:41,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274247946] [2022-12-13 11:10:41,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:10:41,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:10:41,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:10:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:10:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:10:41,431 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:10:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:10:41,465 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 11:10:41,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:10:41,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-12-13 11:10:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:10:41,471 INFO L225 Difference]: With dead ends: 22 [2022-12-13 11:10:41,472 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:10:41,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:10:41,475 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:10:41,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 43 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:10:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:10:41,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 11:10:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 11:10:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 11:10:41,499 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 11:10:41,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:10:41,500 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 11:10:41,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:10:41,500 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 11:10:41,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:10:41,501 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:10:41,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:10:41,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:10:41,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:10:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:10:41,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-12-13 11:10:41,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:10:41,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583707604] [2022-12-13 11:10:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:10:41,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:10:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:10:41,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:10:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:10:41,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:10:41,561 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:10:41,563 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:10:41,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:10:41,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:10:41,567 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:10:41,570 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:10:41,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:10:41 BoogieIcfgContainer [2022-12-13 11:10:41,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:10:41,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:10:41,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:10:41,590 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:10:41,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:41" (3/4) ... [2022-12-13 11:10:41,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:10:41,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:10:41,594 INFO L158 Benchmark]: Toolchain (without parser) took 1602.19ms. Allocated memory is still 167.8MB. Free memory was 100.7MB in the beginning and 92.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,594 INFO L158 Benchmark]: CDTParser took 5.16ms. Allocated memory is still 167.8MB. Free memory is still 145.2MB. Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.29ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 86.1MB in the end (delta: 14.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.67ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,596 INFO L158 Benchmark]: Boogie Preprocessor took 18.20ms. Allocated memory is still 167.8MB. Free memory was 83.6MB in the beginning and 81.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,596 INFO L158 Benchmark]: RCFGBuilder took 285.57ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 132.6MB in the end (delta: -50.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,597 INFO L158 Benchmark]: TraceAbstraction took 531.69ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 93.6MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,597 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 167.8MB. Free memory was 93.6MB in the beginning and 92.8MB in the end (delta: 797.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:41,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 5.16ms. Allocated memory is still 167.8MB. Free memory is still 145.2MB. Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.29ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 86.1MB in the end (delta: 14.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.67ms. Allocated memory is still 167.8MB. Free memory was 86.1MB in the beginning and 83.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.20ms. Allocated memory is still 167.8MB. Free memory was 83.6MB in the beginning and 81.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 285.57ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 132.6MB in the end (delta: -50.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 531.69ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 93.6MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 167.8MB. Free memory was 93.6MB in the beginning and 92.8MB in the end (delta: 797.4kB). 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: 1567]: 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] [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483650:2147483653}, argv={2147483650:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_31_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)] = ""; [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [data=2147483647, data=2147483647, dataCopy=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] data + 1 VAL [data=2147483647, data=2147483647, dataCopy=2147483647, 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: 1567]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 20 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 11:10:41,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 6a8251e3365fac549df161550d2b80eb2cbf186150600f9a57808306a6c46d65 --- 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 11:10:43,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:10:43,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:10:43,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:10:43,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:10:43,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:10:43,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:10:43,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:10:43,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:10:43,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:10:43,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:10:43,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:10:43,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:10:43,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:10:43,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:10:43,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:10:43,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:10:43,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:10:43,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:10:43,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:10:43,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:10:43,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:10:43,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:10:43,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:10:43,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:10:43,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:10:43,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:10:43,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:10:43,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:10:43,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:10:43,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:10:43,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:10:43,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:10:43,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:10:43,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:10:43,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:10:43,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:10:43,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:10:43,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:10:43,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:10:43,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:10:43,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 11:10:43,259 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:10:43,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:10:43,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:10:43,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:10:43,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:10:43,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:10:43,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:10:43,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:10:43,261 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:10:43,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:10:43,261 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:10:43,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:10:43,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:10:43,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:10:43,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:10:43,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:10:43,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:10:43,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:10:43,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:10:43,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:10:43,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:43,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:10:43,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:10:43,265 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:10:43,266 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:10:43,266 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_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a8251e3365fac549df161550d2b80eb2cbf186150600f9a57808306a6c46d65 [2022-12-13 11:10:43,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:10:43,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:10:43,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:10:43,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:10:43,519 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:10:43,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:46,116 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:10:46,403 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:10:46,403 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:46,419 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/11488a9da/bde93c83b9ce44c9930c9440de365c0a/FLAG8e4283be4 [2022-12-13 11:10:46,431 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/data/11488a9da/bde93c83b9ce44c9930c9440de365c0a [2022-12-13 11:10:46,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:10:46,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:10:46,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:46,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:10:46,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:10:46,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:46" (1/1) ... [2022-12-13 11:10:46,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e91938f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:46, skipping insertion in model container [2022-12-13 11:10:46,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:10:46" (1/1) ... [2022-12-13 11:10:46,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:10:46,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:10:46,783 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:10:47,217 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:10:47,222 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:47,223 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:47,226 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:47,226 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:47,245 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:10:47,251 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:10:47,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:47,265 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:10:47,285 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:10:47,329 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:10:47,331 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:47,331 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:10:47,333 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:47,333 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:10:47,336 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:10:47,338 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:10:47,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:10:47,425 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:10:47,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47 WrapperNode [2022-12-13 11:10:47,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:10:47,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:47,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:10:47,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:10:47,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,463 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-12-13 11:10:47,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:10:47,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:10:47,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:10:47,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:10:47,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:10:47,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:10:47,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:10:47,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:10:47,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (1/1) ... [2022-12-13 11:10:47,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:10:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:10:47,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:10:47,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:10:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:10:47,533 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:10:47,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:10:47,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:10:47,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 11:10:47,650 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:10:47,651 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:10:47,747 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:10:47,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:10:47,751 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:10:47,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:47 BoogieIcfgContainer [2022-12-13 11:10:47,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:10:47,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:10:47,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:10:47,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:10:47,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:10:46" (1/3) ... [2022-12-13 11:10:47,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:47, skipping insertion in model container [2022-12-13 11:10:47,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:10:47" (2/3) ... [2022-12-13 11:10:47,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b6fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:10:47, skipping insertion in model container [2022-12-13 11:10:47,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:47" (3/3) ... [2022-12-13 11:10:47,758 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_31_bad.i [2022-12-13 11:10:47,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:10:47,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:10:47,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:10:47,814 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;@37c746c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:10:47,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:10:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 11:10:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:10:47,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:10:47,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:10:47,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:10:47,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:10:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 11:10:47,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:10:47,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236390700] [2022-12-13 11:10:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:10:47,837 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 11:10:47,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:10:47,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:47,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:10:47,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:10:47,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:10:47,977 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 11:10:47,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:10:47,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:10:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236390700] [2022-12-13 11:10:47,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236390700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:10:47,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:10:47,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:10:47,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164512453] [2022-12-13 11:10:47,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:10:47,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:10:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:10:48,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:10:48,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:10:48,006 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11:10:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:10:48,019 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 11:10:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:10:48,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-12-13 11:10:48,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:10:48,025 INFO L225 Difference]: With dead ends: 22 [2022-12-13 11:10:48,025 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:10:48,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:10:48,029 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:10:48,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:10:48,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:10:48,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 11:10:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 11:10:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 11:10:48,054 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 11:10:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:10:48,055 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 11:10:48,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11:10:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 11:10:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:10:48,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:10:48,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:10:48,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:10:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:10:48,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-12-13 11:10:48,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:10:48,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534311828] [2022-12-13 11:10:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:10:48,264 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 11:10:48,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:10:48,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:10:48,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:10:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:10:48,526 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:10:48,527 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:10:48,528 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:10:48,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:10:48,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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 11:10:48,741 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:10:48,751 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:10:48,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:10:48 BoogieIcfgContainer [2022-12-13 11:10:48,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:10:48,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:10:48,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:10:48,814 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:10:48,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:10:47" (3/4) ... [2022-12-13 11:10:48,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:10:48,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:10:48,825 INFO L158 Benchmark]: Toolchain (without parser) took 2389.07ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 42.2MB in the end (delta: 8.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:48,826 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:10:48,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 990.02ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 49.6MB in the end (delta: 1.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-12-13 11:10:48,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.51ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 46.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:48,830 INFO L158 Benchmark]: Boogie Preprocessor took 20.13ms. Allocated memory is still 75.5MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:10:48,831 INFO L158 Benchmark]: RCFGBuilder took 268.04ms. Allocated memory is still 75.5MB. Free memory was 44.6MB in the beginning and 30.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:10:48,832 INFO L158 Benchmark]: TraceAbstraction took 1057.73ms. Allocated memory is still 75.5MB. Free memory was 29.9MB in the beginning and 42.6MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:10:48,833 INFO L158 Benchmark]: Witness Printer took 10.25ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 42.2MB in the end (delta: 420.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:10:48,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 990.02ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 49.6MB in the end (delta: 1.2MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.51ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 46.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.13ms. Allocated memory is still 75.5MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.04ms. Allocated memory is still 75.5MB. Free memory was 44.6MB in the beginning and 30.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1057.73ms. Allocated memory is still 75.5MB. Free memory was 29.9MB in the beginning and 42.6MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.25ms. Allocated memory is still 75.5MB. Free memory was 42.6MB in the beginning and 42.2MB in the end (delta: 420.2kB). 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: 1567]: 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] [L1575] 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) [L1575] 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] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_31_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)] = ""; [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [data=2147483647, data=2147483647, dataCopy=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] data + 1 VAL [data=2147483647, data=2147483647, dataCopy=2147483647, 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: 1567]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 1 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 11:10:48,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7a9ccc-134c-47b2-b2a3-1cd6e80033a9/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