./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 --- 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 18:09:21,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:09:21,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:09:21,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:09:21,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:09:21,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:09:21,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:09:21,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:09:21,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:09:21,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:09:21,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:09:21,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:09:21,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:09:21,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:09:21,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:09:21,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:09:21,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:09:21,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:09:21,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:09:21,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:09:21,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:09:21,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:09:21,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:09:21,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:09:21,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:09:21,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:09:21,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:09:21,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:09:21,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:09:21,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:09:21,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:09:21,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:09:21,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:09:21,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:09:21,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:09:21,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:09:21,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:09:21,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:09:21,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:09:21,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:09:21,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:09:21,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:09:21,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:09:21,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:09:21,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:09:21,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:09:21,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:09:21,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:09:21,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:09:21,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:09:21,628 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:09:21,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:09:21,629 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:09:21,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:09:21,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:09:21,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:09:21,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:09:21,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:09:21,630 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:09:21,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:09:21,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:09:21,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:09:21,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:09:21,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:09:21,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:09:21,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:09:21,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:09:21,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:09:21,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:09:21,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:09:21,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:09:21,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:09:21,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:09:21,632 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:09:21,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:09:21,633 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:09:21,633 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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 [2022-12-13 18:09:21,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:09:21,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:09:21,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:09:21,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:09:21,821 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:09:21,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:24,509 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:09:24,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:09:24,803 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:24,821 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/1dd61ce4a/d15113cafabd4537937a3eb79e9490d5/FLAG22258ba7d [2022-12-13 18:09:24,835 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/1dd61ce4a/d15113cafabd4537937a3eb79e9490d5 [2022-12-13 18:09:24,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:09:24,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:09:24,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:09:24,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:09:24,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:09:24,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:09:24" (1/1) ... [2022-12-13 18:09:24,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375a4946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:24, skipping insertion in model container [2022-12-13 18:09:24,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:09:24" (1/1) ... [2022-12-13 18:09:24,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:09:24,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:09:25,197 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:09:25,510 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:09:25,515 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:25,517 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:25,519 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:25,520 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:25,541 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:09:25,547 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:09:25,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:09:25,558 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:09:25,575 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:09:25,622 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:09:25,624 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:25,625 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:25,628 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:25,628 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:25,633 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:09:25,635 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:09:25,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:09:25,772 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:09:25,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25 WrapperNode [2022-12-13 18:09:25,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:09:25,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:09:25,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:09:25,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:09:25,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,830 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-12-13 18:09:25,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:09:25,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:09:25,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:09:25,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:09:25,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:09:25,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:09:25,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:09:25,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:09:25,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (1/1) ... [2022-12-13 18:09:25,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:09:25,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:09:25,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:09:25,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:09:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:09:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:09:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:09:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:09:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:09:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:09:26,026 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:09:26,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:09:26,129 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:09:26,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:09:26,133 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:09:26,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:26 BoogieIcfgContainer [2022-12-13 18:09:26,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:09:26,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:09:26,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:09:26,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:09:26,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:09:24" (1/3) ... [2022-12-13 18:09:26,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2702b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:09:26, skipping insertion in model container [2022-12-13 18:09:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:25" (2/3) ... [2022-12-13 18:09:26,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2702b622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:09:26, skipping insertion in model container [2022-12-13 18:09:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:26" (3/3) ... [2022-12-13 18:09:26,141 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:26,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:09:26,155 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:09:26,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:09:26,196 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;@6190302c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:09:26,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:09:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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 18:09:26,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:09:26,205 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:09:26,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:09:26,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:09:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:09:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-12-13 18:09:26,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:09:26,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138305671] [2022-12-13 18:09:26,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:09:26,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:09:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:09:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:09:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:09:26,433 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 18:09:26,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:09:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138305671] [2022-12-13 18:09:26,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138305671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:09:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:09:26,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:09:26,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816866903] [2022-12-13 18:09:26,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:09:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:09:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:09:26,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:09:26,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:09:26,463 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:09:26,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:09:26,488 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-13 18:09:26,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:09:26,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 18:09:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:09:26,496 INFO L225 Difference]: With dead ends: 42 [2022-12-13 18:09:26,496 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 18:09:26,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:09:26,501 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:09:26,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:09:26,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 18:09:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 18:09:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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 18:09:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 18:09:26,526 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-13 18:09:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:09:26,527 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 18:09:26,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:09:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 18:09:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:09:26,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:09:26,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:09:26,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:09:26,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:09:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:09:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-12-13 18:09:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:09:26,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033318759] [2022-12-13 18:09:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:09:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:09:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:09:26,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:09:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:09:26,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:09:26,609 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:09:26,610 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:09:26,612 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:09:26,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:09:26,615 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:09:26,619 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:09:26,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:09:26 BoogieIcfgContainer [2022-12-13 18:09:26,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:09:26,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:09:26,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:09:26,647 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:09:26,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:26" (3/4) ... [2022-12-13 18:09:26,650 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:09:26,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:09:26,650 INFO L158 Benchmark]: Toolchain (without parser) took 1811.75ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 86.7MB in the beginning and 144.3MB in the end (delta: -57.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:26,651 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:26,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 932.67ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 86.3MB in the beginning and 127.5MB in the end (delta: -41.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2022-12-13 18:09:26,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.06ms. Allocated memory is still 180.4MB. Free memory was 127.5MB in the beginning and 124.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:09:26,652 INFO L158 Benchmark]: Boogie Preprocessor took 28.70ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 123.3MB in the end (delta: 957.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:26,652 INFO L158 Benchmark]: RCFGBuilder took 273.66ms. Allocated memory is still 180.4MB. Free memory was 123.3MB in the beginning and 110.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:09:26,652 INFO L158 Benchmark]: TraceAbstraction took 509.86ms. Allocated memory is still 180.4MB. Free memory was 109.5MB in the beginning and 144.3MB in the end (delta: -34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 18:09:26,652 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 180.4MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:26,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 932.67ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 86.3MB in the beginning and 127.5MB in the end (delta: -41.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.06ms. Allocated memory is still 180.4MB. Free memory was 127.5MB in the beginning and 124.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.70ms. Allocated memory is still 180.4MB. Free memory was 124.2MB in the beginning and 123.3MB in the end (delta: 957.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.66ms. Allocated memory is still 180.4MB. Free memory was 123.3MB in the beginning and 110.5MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 509.86ms. Allocated memory is still 180.4MB. Free memory was 109.5MB in the beginning and 144.3MB in the end (delta: -34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 180.4MB. Free memory is still 144.3MB. 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_14_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-1073741825, 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 18:09:26,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 --- 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 18:09:28,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:09:28,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:09:28,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:09:28,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:09:28,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:09:28,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:09:28,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:09:28,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:09:28,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:09:28,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:09:28,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:09:28,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:09:28,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:09:28,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:09:28,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:09:28,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:09:28,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:09:28,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:09:28,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:09:28,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:09:28,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:09:28,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:09:28,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:09:28,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:09:28,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:09:28,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:09:28,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:09:28,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:09:28,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:09:28,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:09:28,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:09:28,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:09:28,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:09:28,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:09:28,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:09:28,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:09:28,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:09:28,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:09:28,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:09:28,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:09:28,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:09:28,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:09:28,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:09:28,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:09:28,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:09:28,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:09:28,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:09:28,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:09:28,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:09:28,480 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:09:28,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:09:28,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:09:28,481 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:09:28,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:09:28,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:09:28,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:09:28,483 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:09:28,484 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:09:28,484 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_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 [2022-12-13 18:09:28,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:09:28,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:09:28,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:09:28,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:09:28,718 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:09:28,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:31,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:09:31,569 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:09:31,570 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:31,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/4151fc350/4ceed29df4db40eb8c8db5420537a946/FLAGf2adf6686 [2022-12-13 18:09:31,839 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/data/4151fc350/4ceed29df4db40eb8c8db5420537a946 [2022-12-13 18:09:31,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:09:31,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:09:31,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:09:31,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:09:31,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:09:31,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:09:31" (1/1) ... [2022-12-13 18:09:31,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2939478d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:31, skipping insertion in model container [2022-12-13 18:09:31,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:09:31" (1/1) ... [2022-12-13 18:09:31,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:09:31,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:09:32,138 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:09:32,469 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:09:32,474 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:32,475 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:32,476 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:32,476 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:32,491 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:09:32,495 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:09:32,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:09:32,508 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:09:32,528 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:09:32,566 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:09:32,567 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:32,568 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:09:32,570 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:32,570 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:09:32,573 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:09:32,574 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:09:32,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:09:32,694 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:09:32,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32 WrapperNode [2022-12-13 18:09:32,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:09:32,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:09:32,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:09:32,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:09:32,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,746 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-12-13 18:09:32,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:09:32,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:09:32,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:09:32,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:09:32,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:09:32,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:09:32,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:09:32,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:09:32,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (1/1) ... [2022-12-13 18:09:32,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:09:32,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:09:32,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:09:32,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:09:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:09:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:09:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:09:32,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:09:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 18:09:32,955 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:09:32,957 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:09:33,075 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:09:33,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:09:33,079 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:09:33,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:33 BoogieIcfgContainer [2022-12-13 18:09:33,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:09:33,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:09:33,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:09:33,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:09:33,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:09:31" (1/3) ... [2022-12-13 18:09:33,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941b88d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:09:33, skipping insertion in model container [2022-12-13 18:09:33,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:09:32" (2/3) ... [2022-12-13 18:09:33,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941b88d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:09:33, skipping insertion in model container [2022-12-13 18:09:33,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:33" (3/3) ... [2022-12-13 18:09:33,088 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2022-12-13 18:09:33,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:09:33,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:09:33,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:09:33,146 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;@33592ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:09:33,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:09:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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 18:09:33,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:09:33,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:09:33,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:09:33,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:09:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:09:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-12-13 18:09:33,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:09:33,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262918380] [2022-12-13 18:09:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:09:33,176 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 18:09:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:09:33,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:09:33,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 18:09:33,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:09:33,328 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 18:09:33,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:09:33,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:09:33,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262918380] [2022-12-13 18:09:33,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262918380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:09:33,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:09:33,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:09:33,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050626033] [2022-12-13 18:09:33,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:09:33,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:09:33,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:09:33,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:09:33,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:09:33,364 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:09:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:09:33,393 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-13 18:09:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:09:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 18:09:33,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:09:33,400 INFO L225 Difference]: With dead ends: 42 [2022-12-13 18:09:33,400 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 18:09:33,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:09:33,404 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:09:33,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:09:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 18:09:33,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 18:09:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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 18:09:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 18:09:33,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-13 18:09:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:09:33,430 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 18:09:33,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:09:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 18:09:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:09:33,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:09:33,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:09:33,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:09:33,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:09:33,636 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-12-13 18:09:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:09:33,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454258254] [2022-12-13 18:09:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:09:33,643 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 18:09:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:09:33,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:09:33,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:09:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:09:33,819 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:09:33,819 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:09:33,821 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:09:33,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:09:33,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:34,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 18:09:34,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:09:34,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:09:34,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:09:34 BoogieIcfgContainer [2022-12-13 18:09:34,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:09:34,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:09:34,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:09:34,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:09:34,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:09:33" (3/4) ... [2022-12-13 18:09:34,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:09:34,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:09:34,082 INFO L158 Benchmark]: Toolchain (without parser) took 2239.46ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 32.1MB in the end (delta: 18.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-12-13 18:09:34,082 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:34,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 851.14ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 42.8MB in the end (delta: 7.7MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-13 18:09:34,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.85ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:09:34,083 INFO L158 Benchmark]: Boogie Preprocessor took 22.55ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:34,083 INFO L158 Benchmark]: RCFGBuilder took 311.11ms. Allocated memory is still 75.5MB. Free memory was 37.5MB in the beginning and 43.2MB in the end (delta: -5.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-12-13 18:09:34,084 INFO L158 Benchmark]: TraceAbstraction took 995.17ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 32.5MB in the end (delta: 9.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-13 18:09:34,084 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 75.5MB. Free memory was 32.5MB in the beginning and 32.1MB in the end (delta: 386.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:09:34,086 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 851.14ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 42.8MB in the end (delta: 7.7MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.85ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.55ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.11ms. Allocated memory is still 75.5MB. Free memory was 37.5MB in the beginning and 43.2MB in the end (delta: -5.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 995.17ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 32.5MB in the end (delta: 9.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 75.5MB. Free memory was 32.5MB in the beginning and 32.1MB in the end (delta: 386.0kB). 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_14_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data < 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:09:34,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a695972-619b-4c77-bb90-8a8b4d9fecdb/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample