./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf --- 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-38b53e6 [2022-11-26 01:01:19,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:01:19,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:01:19,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:01:19,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:01:19,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:01:19,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:01:19,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:01:19,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:01:19,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:01:19,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:01:19,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:01:19,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:01:19,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:01:19,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:01:19,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:01:19,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:01:19,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:01:19,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:01:19,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:01:19,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:01:19,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:01:19,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:01:19,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:01:19,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:01:19,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:01:19,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:01:19,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:01:19,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:01:19,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:01:19,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:01:19,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:01:19,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:01:19,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:01:19,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:01:19,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:01:19,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:01:19,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:01:19,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:01:19,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:01:19,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:01:19,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:01:19,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:01:19,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:01:19,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:01:19,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:01:19,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:01:19,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:01:19,769 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:01:19,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:01:19,770 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:01:19,770 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:01:19,771 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:01:19,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:01:19,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:01:19,772 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:01:19,772 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:01:19,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:01:19,773 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:01:19,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:01:19,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:01:19,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:01:19,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:01:19,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:01:19,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:01:19,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:01:19,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:01:19,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:01:19,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:01:19,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:01:19,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:01:19,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:01:19,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:01:19,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:19,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:01:19,778 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:01:19,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:01:19,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:01:19,779 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:01:19,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:01:19,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:01:19,779 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:01:19,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf [2022-11-26 01:01:20,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:01:20,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:01:20,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:01:20,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:01:20,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:01:20,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:23,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:01:23,686 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:01:23,689 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:23,725 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/521ab3367/39bd4a9d0ed1424ebc9b51f7fcfddac1/FLAG53bb075e5 [2022-11-26 01:01:23,753 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/521ab3367/39bd4a9d0ed1424ebc9b51f7fcfddac1 [2022-11-26 01:01:23,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:01:23,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:01:23,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:23,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:01:23,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:01:23,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:23" (1/1) ... [2022-11-26 01:01:23,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc09034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:23, skipping insertion in model container [2022-11-26 01:01:23,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:23" (1/1) ... [2022-11-26 01:01:23,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:01:23,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:01:24,354 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:01:24,976 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:01:24,985 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:24,988 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:25,000 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:25,001 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:25,031 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:01:25,039 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:01:25,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:25,056 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:01:25,101 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:01:25,148 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:01:25,150 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:25,151 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:25,154 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:25,171 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:25,177 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:01:25,179 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:01:25,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:25,406 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:01:25,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25 WrapperNode [2022-11-26 01:01:25,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:25,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:25,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:01:25,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:01:25,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,527 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-26 01:01:25,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:25,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:01:25,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:01:25,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:01:25,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:01:25,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:01:25,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:01:25,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:01:25,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (1/1) ... [2022-11-26 01:01:25,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:25,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:25,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:01:25,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:01:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:01:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:01:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:01:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:01:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:01:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:01:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:01:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:01:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:01:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:01:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:01:25,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:01:25,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:01:26,115 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:01:26,155 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:01:26,155 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:01:26,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:26 BoogieIcfgContainer [2022-11-26 01:01:26,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:01:26,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:01:26,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:01:26,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:01:26,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:01:23" (1/3) ... [2022-11-26 01:01:26,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71949d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:26, skipping insertion in model container [2022-11-26 01:01:26,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:25" (2/3) ... [2022-11-26 01:01:26,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71949d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:26, skipping insertion in model container [2022-11-26 01:01:26,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:26" (3/3) ... [2022-11-26 01:01:26,169 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:26,188 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:01:26,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:01:26,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:01:26,240 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=FINITE_AUTOMATA, 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;@5710887e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:01:26,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:01:26,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-11-26 01:01:26,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:01:26,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:26,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:26,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:01:26,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:26,266 INFO L85 PathProgramCache]: Analyzing trace with hash -39583869, now seen corresponding path program 1 times [2022-11-26 01:01:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:26,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459592072] [2022-11-26 01:01:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:26,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:01:26,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:01:26,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459592072] [2022-11-26 01:01:26,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459592072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:26,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:01:26,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:01:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550684037] [2022-11-26 01:01:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:26,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:01:26,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:01:26,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:01:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:26,702 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 01:01:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:26,787 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-26 01:01:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:01:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-11-26 01:01:26,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:26,797 INFO L225 Difference]: With dead ends: 21 [2022-11-26 01:01:26,797 INFO L226 Difference]: Without dead ends: 12 [2022-11-26 01:01:26,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:26,809 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:26,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 01:01:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-26 01:01:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-26 01:01:26,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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) [2022-11-26 01:01:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-26 01:01:26,849 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-11-26 01:01:26,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:26,850 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-26 01:01:26,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-26 01:01:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-26 01:01:26,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 01:01:26,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:26,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:26,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:01:26,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:01:26,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:26,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1227099880, now seen corresponding path program 1 times [2022-11-26 01:01:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:26,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315585290] [2022-11-26 01:01:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:26,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:01:26,928 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:01:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:01:26,970 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:01:26,970 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:01:26,972 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:01:26,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:01:26,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:01:26,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:01:26,984 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:01:27,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:01:27 BoogieIcfgContainer [2022-11-26 01:01:27,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:01:27,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:01:27,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:01:27,014 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:01:27,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:26" (3/4) ... [2022-11-26 01:01:27,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:01:27,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:01:27,031 INFO L158 Benchmark]: Toolchain (without parser) took 3270.08ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 111.2MB in the beginning and 97.9MB in the end (delta: 13.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,032 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 102.8MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:01:27,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1645.39ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 111.2MB in the beginning and 151.4MB in the end (delta: -40.2MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.16ms. Allocated memory is still 209.7MB. Free memory was 151.4MB in the beginning and 148.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,033 INFO L158 Benchmark]: Boogie Preprocessor took 61.47ms. Allocated memory is still 209.7MB. Free memory was 148.3MB in the beginning and 147.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,034 INFO L158 Benchmark]: RCFGBuilder took 566.62ms. Allocated memory is still 209.7MB. Free memory was 147.0MB in the beginning and 131.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,035 INFO L158 Benchmark]: TraceAbstraction took 852.14ms. Allocated memory is still 209.7MB. Free memory was 131.4MB in the beginning and 97.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-26 01:01:27,035 INFO L158 Benchmark]: Witness Printer took 16.39ms. Allocated memory is still 209.7MB. Free memory was 97.9MB in the beginning and 97.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:01:27,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 102.8MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1645.39ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 111.2MB in the beginning and 151.4MB in the end (delta: -40.2MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.16ms. Allocated memory is still 209.7MB. Free memory was 151.4MB in the beginning and 148.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.47ms. Allocated memory is still 209.7MB. Free memory was 148.3MB in the beginning and 147.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 566.62ms. Allocated memory is still 209.7MB. Free memory was 147.0MB in the beginning and 131.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 852.14ms. Allocated memory is still 209.7MB. Free memory was 131.4MB in the beginning and 97.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 16.39ms. Allocated memory is still 209.7MB. Free memory was 97.9MB in the beginning and 97.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741827}, argv={1073741829:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2022-11-26 01:01:27,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf --- 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-38b53e6 [2022-11-26 01:01:29,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:01:29,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:01:29,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:01:29,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:01:29,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:01:29,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:01:29,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:01:29,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:01:29,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:01:29,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:01:29,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:01:29,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:01:29,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:01:29,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:01:29,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:01:29,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:01:29,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:01:29,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:01:29,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:01:29,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:01:29,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:01:29,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:01:29,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:01:29,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:01:29,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:01:29,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:01:29,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:01:29,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:01:29,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:01:29,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:01:29,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:01:29,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:01:29,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:01:29,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:01:29,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:01:29,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:01:29,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:01:29,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:01:29,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:01:29,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:01:29,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:01:29,997 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:01:29,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:01:29,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:01:30,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:01:30,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:01:30,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:01:30,002 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:01:30,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:01:30,002 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:01:30,002 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:01:30,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:01:30,004 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:01:30,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:01:30,005 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:01:30,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:01:30,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:01:30,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:01:30,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:01:30,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:01:30,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:01:30,006 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:01:30,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:01:30,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:01:30,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:01:30,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:01:30,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:01:30,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:01:30,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:01:30,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:30,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:01:30,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:01:30,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:01:30,009 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:01:30,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:01:30,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:01:30,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:01:30,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:01:30,010 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59176cd00520a5a4aca656e3f81e02c964e0650c21d035534f9139b7ed3a3bf [2022-11-26 01:01:30,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:01:30,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:01:30,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:01:30,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:01:30,540 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:01:30,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:33,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:01:34,363 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:01:34,363 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:34,387 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/f9354b22a/a028d2d60dc64b628d8f76d7d39d3579/FLAG9e6ac6de3 [2022-11-26 01:01:34,412 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/data/f9354b22a/a028d2d60dc64b628d8f76d7d39d3579 [2022-11-26 01:01:34,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:01:34,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:01:34,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:34,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:01:34,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:01:34,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:34" (1/1) ... [2022-11-26 01:01:34,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a07cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:34, skipping insertion in model container [2022-11-26 01:01:34,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:01:34" (1/1) ... [2022-11-26 01:01:34,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:01:34,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:01:35,057 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:01:35,628 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:01:35,635 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:35,637 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:35,639 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:35,640 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:35,663 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:01:35,670 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:01:35,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:35,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:01:35,746 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:01:35,822 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:01:35,826 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:35,828 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:01:35,831 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:35,834 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:01:35,840 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:01:35,843 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:01:35,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:01:36,030 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:01:36,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36 WrapperNode [2022-11-26 01:01:36,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:01:36,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:36,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:01:36,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:01:36,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,093 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-26 01:01:36,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:01:36,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:01:36,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:01:36,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:01:36,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,121 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:01:36,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:01:36,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:01:36,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:01:36,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (1/1) ... [2022-11-26 01:01:36,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:01:36,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:36,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:01:36,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:01:36,219 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:01:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:01:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:01:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:01:36,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:01:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:01:36,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:01:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:01:36,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:01:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:01:36,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 01:01:36,413 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:01:36,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:01:36,703 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:01:36,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:01:36,709 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:01:36,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:36 BoogieIcfgContainer [2022-11-26 01:01:36,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:01:36,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:01:36,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:01:36,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:01:36,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:01:34" (1/3) ... [2022-11-26 01:01:36,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf8405c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:36, skipping insertion in model container [2022-11-26 01:01:36,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:01:36" (2/3) ... [2022-11-26 01:01:36,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf8405c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:01:36, skipping insertion in model container [2022-11-26 01:01:36,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:36" (3/3) ... [2022-11-26 01:01:36,732 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_42_bad.i [2022-11-26 01:01:36,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:01:36,754 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:01:36,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:01:36,832 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=FINITE_AUTOMATA, 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;@69b28ad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:01:36,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:01:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-11-26 01:01:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 01:01:36,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:36,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:36,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:01:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash -761706190, now seen corresponding path program 1 times [2022-11-26 01:01:36,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:01:36,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348207592] [2022-11-26 01:01:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:36,883 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 [2022-11-26 01:01:36,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:01:36,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:01:36,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:01:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:37,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:01:37,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:01:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:01:37,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:01:37,191 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:01:37,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348207592] [2022-11-26 01:01:37,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348207592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:37,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:01:37,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:01:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416201331] [2022-11-26 01:01:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:37,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:01:37,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:01:37,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:01:37,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:37,264 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 01:01:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:37,320 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-26 01:01:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:01:37,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-26 01:01:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:37,331 INFO L225 Difference]: With dead ends: 30 [2022-11-26 01:01:37,331 INFO L226 Difference]: Without dead ends: 16 [2022-11-26 01:01:37,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:37,338 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:37,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:01:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-26 01:01:37,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-26 01:01:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 01:01:37,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-26 01:01:37,378 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2022-11-26 01:01:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:37,381 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-26 01:01:37,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 01:01:37,382 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-26 01:01:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 01:01:37,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:37,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:37,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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)] Ended with exit code 0 [2022-11-26 01:01:37,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:01:37,584 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:01:37,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:37,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2138055351, now seen corresponding path program 1 times [2022-11-26 01:01:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:01:37,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703196432] [2022-11-26 01:01:37,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:37,587 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 [2022-11-26 01:01:37,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:01:37,589 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:01:37,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:01:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:01:37,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:01:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:01:37,777 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:01:37,777 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:01:37,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:01:37,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:01:37,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-26 01:01:38,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:01:38,006 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:01:38,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:01:38,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:01:38 BoogieIcfgContainer [2022-11-26 01:01:38,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:01:38,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:01:38,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:01:38,042 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:01:38,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:01:36" (3/4) ... [2022-11-26 01:01:38,046 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:01:38,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:01:38,047 INFO L158 Benchmark]: Toolchain (without parser) took 3630.19ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 54.0MB in the beginning and 64.0MB in the end (delta: -10.0MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-26 01:01:38,047 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:01:38,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1612.68ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 53.8MB in the beginning and 54.3MB in the end (delta: -564.7kB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-26 01:01:38,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.41ms. Allocated memory is still 102.8MB. Free memory was 54.3MB in the beginning and 51.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:01:38,049 INFO L158 Benchmark]: Boogie Preprocessor took 31.88ms. Allocated memory is still 102.8MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:01:38,049 INFO L158 Benchmark]: RCFGBuilder took 594.39ms. Allocated memory is still 102.8MB. Free memory was 49.0MB in the beginning and 65.4MB in the end (delta: -16.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-26 01:01:38,050 INFO L158 Benchmark]: TraceAbstraction took 1317.05ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 64.6MB in the end (delta: 239.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:01:38,050 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 102.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:01:38,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1612.68ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 53.8MB in the beginning and 54.3MB in the end (delta: -564.7kB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.41ms. Allocated memory is still 102.8MB. Free memory was 54.3MB in the beginning and 51.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.88ms. Allocated memory is still 102.8MB. Free memory was 51.5MB in the beginning and 49.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.39ms. Allocated memory is still 102.8MB. Free memory was 49.0MB in the beginning and 65.4MB in the end (delta: -16.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1317.05ms. Allocated memory is still 102.8MB. Free memory was 64.8MB in the beginning and 64.6MB in the end (delta: 239.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 102.8MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. 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] [L1577] 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) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:01:38,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d747530b-d01b-4cd0-bf7c-092ec08183ff/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample