./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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_33668d14-6343-4261-be8c-7b5557e43ded/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 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a --- 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 13:04:45,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:04:45,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:04:45,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:04:45,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:04:45,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:04:45,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:04:45,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:04:45,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:04:45,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:04:45,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:04:45,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:04:45,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:04:45,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:04:45,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:04:45,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:04:45,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:04:45,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:04:45,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:04:45,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:04:45,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:04:45,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:04:45,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:04:45,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:04:45,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:04:45,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:04:45,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:04:45,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:04:45,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:04:45,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:04:45,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:04:45,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:04:45,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:04:45,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:04:45,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:04:45,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:04:45,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:04:45,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:04:45,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:04:45,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:04:45,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:04:45,564 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 13:04:45,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:04:45,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:04:45,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:04:45,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:04:45,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:04:45,583 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:04:45,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:04:45,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:04:45,584 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:04:45,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:04:45,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:04:45,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:04:45,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:04:45,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:04:45,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:04:45,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:04:45,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:04:45,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:04:45,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:04:45,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:04:45,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:04:45,588 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:04:45,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:04:45,589 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:04:45,589 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_33668d14-6343-4261-be8c-7b5557e43ded/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a [2022-12-13 13:04:45,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:04:45,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:04:45,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:04:45,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:04:45,807 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:04:45,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:48,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:04:48,655 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:04:48,656 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:48,673 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/5a808441c/26fcd4d9d461461bbc342b498618f212/FLAG06600b0af [2022-12-13 13:04:48,687 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/5a808441c/26fcd4d9d461461bbc342b498618f212 [2022-12-13 13:04:48,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:04:48,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:04:48,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:04:48,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:04:48,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:04:48,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:04:48" (1/1) ... [2022-12-13 13:04:48,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eff41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:48, skipping insertion in model container [2022-12-13 13:04:48,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:04:48" (1/1) ... [2022-12-13 13:04:48,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:04:48,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:04:49,023 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:04:49,378 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:04:49,382 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:49,384 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:49,387 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:49,388 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:49,406 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:04:49,410 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:04:49,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:04:49,418 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:04:49,433 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:04:49,465 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:04:49,467 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:49,468 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:49,469 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:49,470 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:49,473 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:04:49,474 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:04:49,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:04:49,584 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:04:49,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49 WrapperNode [2022-12-13 13:04:49,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:04:49,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:04:49,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:04:49,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:04:49,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,637 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2022-12-13 13:04:49,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:04:49,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:04:49,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:04:49,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:04:49,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:04:49,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:04:49,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:04:49,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:04:49,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (1/1) ... [2022-12-13 13:04:49,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:04:49,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:04:49,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:04:49,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:04:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 13:04:49,732 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 13:04:49,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:04:49,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 13:04:49,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:04:49,856 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:04:49,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:04:49,961 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:04:49,968 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:04:49,968 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:04:49,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:49 BoogieIcfgContainer [2022-12-13 13:04:49,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:04:49,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:04:49,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:04:49,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:04:49,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:04:48" (1/3) ... [2022-12-13 13:04:49,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af7ef58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:04:49, skipping insertion in model container [2022-12-13 13:04:49,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:49" (2/3) ... [2022-12-13 13:04:49,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af7ef58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:04:49, skipping insertion in model container [2022-12-13 13:04:49,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:49" (3/3) ... [2022-12-13 13:04:49,979 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:49,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:04:49,998 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:04:50,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:04:50,044 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;@68fd10f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:04:50,045 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:04:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 13:04:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:04:50,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:04:50,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:04:50,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:04:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:04:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 13:04:50,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:04:50,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166552129] [2022-12-13 13:04:50,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:04:50,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:04:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:04:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:04:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:04:50,328 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 13:04:50,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:04:50,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166552129] [2022-12-13 13:04:50,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166552129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:04:50,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:04:50,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:04:50,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640124432] [2022-12-13 13:04:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:04:50,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:04:50,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:04:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:04:50,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:04:50,367 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:04:50,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:04:50,394 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 13:04:50,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:04:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 13:04:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:04:50,402 INFO L225 Difference]: With dead ends: 22 [2022-12-13 13:04:50,402 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 13:04:50,404 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 13:04:50,407 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:04:50,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:04:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 13:04:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 13:04:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:04:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 13:04:50,433 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 13:04:50,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:04:50,434 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 13:04:50,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:04:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 13:04:50,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 13:04:50,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:04:50,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:04:50,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:04:50,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:04:50,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:04:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-12-13 13:04:50,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:04:50,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492542129] [2022-12-13 13:04:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:04:50,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:04:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:04:50,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:04:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:04:50,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:04:50,504 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:04:50,506 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 13:04:50,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 13:04:50,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:04:50,510 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:04:50,513 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:04:50,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:04:50 BoogieIcfgContainer [2022-12-13 13:04:50,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:04:50,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:04:50,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:04:50,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:04:50,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:49" (3/4) ... [2022-12-13 13:04:50,537 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:04:50,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:04:50,538 INFO L158 Benchmark]: Toolchain (without parser) took 1847.31ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 107.5MB in the beginning and 95.1MB in the end (delta: 12.4MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2022-12-13 13:04:50,539 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:04:50,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.35ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 107.5MB in the beginning and 147.5MB in the end (delta: -40.0MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-12-13 13:04:50,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.46ms. Allocated memory is still 184.5MB. Free memory was 147.5MB in the beginning and 144.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:04:50,540 INFO L158 Benchmark]: Boogie Preprocessor took 25.11ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 143.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:04:50,541 INFO L158 Benchmark]: RCFGBuilder took 305.66ms. Allocated memory is still 184.5MB. Free memory was 143.3MB in the beginning and 129.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:04:50,541 INFO L158 Benchmark]: TraceAbstraction took 561.67ms. Allocated memory is still 184.5MB. Free memory was 129.7MB in the beginning and 95.1MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 13:04:50,542 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 184.5MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:04:50,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.35ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 107.5MB in the beginning and 147.5MB in the end (delta: -40.0MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.46ms. Allocated memory is still 184.5MB. Free memory was 147.5MB in the beginning and 144.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.11ms. Allocated memory is still 184.5MB. Free memory was 144.3MB in the beginning and 143.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 305.66ms. Allocated memory is still 184.5MB. Free memory was 143.3MB in the beginning and 129.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 561.67ms. Allocated memory is still 184.5MB. Free memory was 129.7MB in the beginning and 95.1MB in the end (delta: 34.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 184.5MB. Free memory is still 95.1MB. 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] 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) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483651:2147483654}, argv={2147483651:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 3 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=22occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:04:50,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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_33668d14-6343-4261-be8c-7b5557e43ded/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 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a --- 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 13:04:52,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:04:52,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:04:52,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:04:52,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:04:52,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:04:52,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:04:52,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:04:52,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:04:52,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:04:52,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:04:52,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:04:52,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:04:52,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:04:52,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:04:52,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:04:52,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:04:52,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:04:52,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:04:52,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:04:52,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:04:52,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:04:52,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:04:52,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:04:52,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:04:52,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:04:52,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:04:52,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:04:52,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:04:52,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:04:52,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:04:52,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:04:52,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:04:52,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:04:52,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:04:52,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:04:52,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:04:52,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:04:52,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:04:52,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:04:52,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:04:52,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 13:04:52,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:04:52,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:04:52,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:04:52,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:04:52,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:04:52,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:04:52,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:04:52,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:04:52,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:04:52,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:04:52,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:04:52,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:04:52,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:04:52,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:04:52,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:04:52,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:04:52,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:04:52,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:04:52,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:04:52,437 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:04:52,437 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:04:52,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:04:52,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:04:52,438 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:04:52,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:04:52,438 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:04:52,438 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:04:52,438 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_33668d14-6343-4261-be8c-7b5557e43ded/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a [2022-12-13 13:04:52,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:04:52,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:04:52,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:04:52,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:04:52,703 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:04:52,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:55,348 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:04:55,615 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:04:55,615 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:55,634 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/a266359b9/0aab9ca1a19b44228eb14c7b5fe669c1/FLAG119e7d64f [2022-12-13 13:04:55,648 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/data/a266359b9/0aab9ca1a19b44228eb14c7b5fe669c1 [2022-12-13 13:04:55,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:04:55,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:04:55,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:04:55,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:04:55,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:04:55,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:04:55" (1/1) ... [2022-12-13 13:04:55,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8079eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:55, skipping insertion in model container [2022-12-13 13:04:55,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:04:55" (1/1) ... [2022-12-13 13:04:55,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:04:55,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:04:56,007 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:04:56,334 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:04:56,339 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:56,340 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:56,343 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:56,343 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:56,361 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:04:56,366 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:04:56,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:04:56,381 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:04:56,401 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:04:56,453 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:04:56,454 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:56,455 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:04:56,457 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:56,458 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:04:56,462 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:04:56,464 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:04:56,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:04:56,542 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:04:56,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56 WrapperNode [2022-12-13 13:04:56,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:04:56,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:04:56,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:04:56,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:04:56,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,598 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2022-12-13 13:04:56,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:04:56,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:04:56,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:04:56,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:04:56,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,622 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:04:56,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:04:56,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:04:56,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:04:56,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (1/1) ... [2022-12-13 13:04:56,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:04:56,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:04:56,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:04:56,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:04:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 13:04:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 13:04:56,685 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:04:56,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 13:04:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 13:04:56,801 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:04:56,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:04:56,905 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:04:56,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:04:56,909 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:04:56,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:56 BoogieIcfgContainer [2022-12-13 13:04:56,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:04:56,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:04:56,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:04:56,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:04:56,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:04:55" (1/3) ... [2022-12-13 13:04:56,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5406cdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:04:56, skipping insertion in model container [2022-12-13 13:04:56,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:04:56" (2/3) ... [2022-12-13 13:04:56,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5406cdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:04:56, skipping insertion in model container [2022-12-13 13:04:56,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:56" (3/3) ... [2022-12-13 13:04:56,916 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2022-12-13 13:04:56,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:04:56,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:04:56,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:04:56,966 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;@6f46fb51, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:04:56,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:04:56,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 13:04:56,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:04:56,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:04:56,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:04:56,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:04:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:04:56,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-13 13:04:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:04:56,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277689193] [2022-12-13 13:04:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:04:56,989 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 13:04:56,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:04:56,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:56,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:04:57,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:04:57,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:04:57,150 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 13:04:57,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:04:57,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:04:57,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277689193] [2022-12-13 13:04:57,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277689193] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:04:57,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:04:57,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:04:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931617352] [2022-12-13 13:04:57,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:04:57,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:04:57,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:04:57,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:04:57,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:04:57,185 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:04:57,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:04:57,201 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-12-13 13:04:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:04:57,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 13:04:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:04:57,208 INFO L225 Difference]: With dead ends: 22 [2022-12-13 13:04:57,208 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 13:04:57,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:04:57,214 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:04:57,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:04:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 13:04:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 13:04:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 13:04:57,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 13:04:57,243 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 13:04:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:04:57,244 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 13:04:57,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:04:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 13:04:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 13:04:57,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:04:57,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:04:57,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:04:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:04:57,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-12-13 13:04:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:04:57,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933169661] [2022-12-13 13:04:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:04:57,453 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 13:04:57,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:04:57,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:04:57,681 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:04:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:04:57,725 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 13:04:57,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:04:57,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 13:04:57,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 13:04:57,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/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 13:04:57,939 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:04:57,949 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:04:58,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:04:58 BoogieIcfgContainer [2022-12-13 13:04:58,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:04:58,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:04:58,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:04:58,011 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:04:58,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:04:56" (3/4) ... [2022-12-13 13:04:58,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:04:58,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:04:58,024 INFO L158 Benchmark]: Toolchain (without parser) took 2370.50ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.6MB in the beginning and 36.1MB in the end (delta: 5.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,025 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 69.2MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:04:58,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.24ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.4MB in the beginning and 34.3MB in the end (delta: 7.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.71ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 57.4MB in the end (delta: -23.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,029 INFO L158 Benchmark]: Boogie Preprocessor took 28.22ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,030 INFO L158 Benchmark]: RCFGBuilder took 282.29ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 41.6MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,032 INFO L158 Benchmark]: TraceAbstraction took 1097.27ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.3MB in the end (delta: 4.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-13 13:04:58,033 INFO L158 Benchmark]: Witness Printer took 11.26ms. Allocated memory is still 83.9MB. Free memory was 36.3MB in the beginning and 36.1MB in the end (delta: 147.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:04:58,040 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 69.2MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.24ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 41.4MB in the beginning and 34.3MB in the end (delta: 7.1MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.71ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 57.4MB in the end (delta: -23.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.22ms. Allocated memory is still 83.9MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.29ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 41.6MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1097.27ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 36.3MB in the end (delta: 4.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 11.26ms. Allocated memory is still 83.9MB. Free memory was 36.3MB in the beginning and 36.1MB in the end (delta: 147.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] 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) [L1571] 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:04:58,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33668d14-6343-4261-be8c-7b5557e43ded/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample