./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh --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 69fdb971886e5b8539bd7c91c2ed2613ec546f694a2601ecdfc5a8a5474e7fce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:52:46,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:52:46,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:52:46,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:52:46,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:52:46,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:52:46,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:52:46,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:52:46,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:52:46,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:52:46,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:52:46,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:52:46,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:52:46,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:52:46,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:52:46,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:52:46,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:52:46,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:52:46,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:52:46,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:52:46,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:52:46,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:52:46,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:52:46,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:52:46,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:52:46,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:52:46,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:52:46,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:52:46,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:52:46,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:52:46,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:52:46,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:52:46,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:52:46,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:52:46,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:52:46,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:52:46,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:52:46,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:52:46,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:52:46,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:52:46,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:52:46,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 11:52:46,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:52:46,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:52:46,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:52:46,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:52:46,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:52:46,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:52:46,719 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:52:46,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:52:46,719 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:52:46,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:52:46,719 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:52:46,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:52:46,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:52:46,720 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:52:46,720 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:52:46,720 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:52:46,721 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:52:46,721 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:52:46,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:52:46,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:52:46,723 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:52:46,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:52:46,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:52:46,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:52:46,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:52:46,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:46,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:52:46,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:52:46,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:52:46,725 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_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69fdb971886e5b8539bd7c91c2ed2613ec546f694a2601ecdfc5a8a5474e7fce [2022-12-14 11:52:46,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:52:46,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:52:46,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:52:46,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:52:46,921 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:52:46,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:49,397 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:52:49,652 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:52:49,652 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:49,665 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/3027d06b6/0d17a9e98d784e9cb2688b3af090c8fd/FLAGeaaf8221c [2022-12-14 11:52:49,969 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/3027d06b6/0d17a9e98d784e9cb2688b3af090c8fd [2022-12-14 11:52:49,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:52:49,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:52:49,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:49,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:52:49,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:52:49,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:49" (1/1) ... [2022-12-14 11:52:49,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1591903d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:49, skipping insertion in model container [2022-12-14 11:52:49,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:49" (1/1) ... [2022-12-14 11:52:49,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:52:50,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:52:50,262 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:52:50,574 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:50,578 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:50,580 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:50,581 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:50,582 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:50,598 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:52:50,601 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:52:50,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:50,612 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:52:50,631 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:52:50,680 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:50,682 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:50,683 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:50,685 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:50,686 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:50,691 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:52:50,692 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:52:50,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:50,779 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:52:50,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50 WrapperNode [2022-12-14 11:52:50,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:50,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:50,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:52:50,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:52:50,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,831 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-12-14 11:52:50,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:50,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:52:50,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:52:50,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:52:50,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:52:50,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:52:50,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:52:50,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:52:50,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (1/1) ... [2022-12-14 11:52:50,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:50,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:50,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:52:50,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:52:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 11:52:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:52:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:52:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:52:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:52:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:52:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:52:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:52:51,025 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:52:51,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:52:51,133 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:52:51,162 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:52:51,162 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:52:51,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:51 BoogieIcfgContainer [2022-12-14 11:52:51,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:52:51,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:52:51,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:52:51,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:52:51,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:52:49" (1/3) ... [2022-12-14 11:52:51,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f2384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:51, skipping insertion in model container [2022-12-14 11:52:51,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:50" (2/3) ... [2022-12-14 11:52:51,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f2384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:51, skipping insertion in model container [2022-12-14 11:52:51,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:51" (3/3) ... [2022-12-14 11:52:51,173 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:51,191 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:52:51,191 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:52:51,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:52:51,242 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;@4c52027e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:52:51,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:52:51,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 11:52:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:52:51,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:51,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:51,254 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:52:51,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:51,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 11:52:51,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:51,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318925295] [2022-12-14 11:52:51,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:52:51,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:51,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318925295] [2022-12-14 11:52:51,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318925295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:51,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:51,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:52:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810491924] [2022-12-14 11:52:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:51,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:52:51,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:51,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:52:51,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:52:51,637 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:52:51,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:51,688 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 11:52:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:52:51,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2022-12-14 11:52:51,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:51,695 INFO L225 Difference]: With dead ends: 15 [2022-12-14 11:52:51,695 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 11:52:51,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:52:51,700 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:51,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:52:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 11:52:51,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 11:52:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:52:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 11:52:51,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 11:52:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:51,726 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 11:52:51,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:52:51,726 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 11:52:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:52:51,727 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:51,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:51,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:52:51,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:52:51,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2022-12-14 11:52:51,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:51,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180804839] [2022-12-14 11:52:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:51,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:52:51,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:52:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:52:51,784 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:52:51,785 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:52:51,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:52:51,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:52:51,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:52:51,791 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:52:51,794 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:52:51,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:52:51 BoogieIcfgContainer [2022-12-14 11:52:51,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:52:51,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:52:51,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:52:51,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:52:51,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:51" (3/4) ... [2022-12-14 11:52:51,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:52:51,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:52:51,814 INFO L158 Benchmark]: Toolchain (without parser) took 1841.04ms. Allocated memory is still 167.8MB. Free memory was 129.0MB in the beginning and 60.6MB in the end (delta: 68.4MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,815 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 86.7MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 804.36ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 65.5MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.64ms. Allocated memory is still 167.8MB. Free memory was 65.5MB in the beginning and 136.8MB in the end (delta: -71.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,816 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 167.8MB. Free memory was 136.8MB in the beginning and 135.9MB in the end (delta: 902.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:52:51,816 INFO L158 Benchmark]: RCFGBuilder took 308.08ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 119.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,816 INFO L158 Benchmark]: TraceAbstraction took 643.31ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 61.5MB in the end (delta: 57.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-12-14 11:52:51,817 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 167.8MB. Free memory was 61.5MB in the beginning and 60.6MB in the end (delta: 899.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:52:51,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 86.7MB in the end (delta: 153.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 804.36ms. Allocated memory is still 167.8MB. Free memory was 128.4MB in the beginning and 65.5MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.64ms. Allocated memory is still 167.8MB. Free memory was 65.5MB in the beginning and 136.8MB in the end (delta: -71.3MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 167.8MB. Free memory was 136.8MB in the beginning and 135.9MB in the end (delta: 902.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.08ms. Allocated memory is still 167.8MB. Free memory was 135.9MB in the beginning and 119.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 643.31ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 61.5MB in the end (delta: 57.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 167.8MB. Free memory was 61.5MB in the beginning and 60.6MB in the end (delta: 899.8kB). 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data++ VAL [data=2147483647, data++=2147483647, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, 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: 1579]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 11:52:51,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/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_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh --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 69fdb971886e5b8539bd7c91c2ed2613ec546f694a2601ecdfc5a8a5474e7fce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:52:53,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:52:53,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:52:53,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:52:53,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:52:53,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:52:53,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:52:53,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:52:53,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:52:53,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:52:53,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:52:53,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:52:53,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:52:53,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:52:53,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:52:53,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:52:53,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:52:53,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:52:53,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:52:53,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:52:53,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:52:53,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:52:53,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:52:53,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:52:53,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:52:53,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:52:53,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:52:53,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:52:53,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:52:53,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:52:53,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:52:53,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:52:53,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:52:53,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:52:53,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:52:53,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:52:53,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:52:53,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:52:53,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:52:53,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:52:53,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:52:53,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 11:52:53,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:52:53,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:52:53,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:52:53,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:52:53,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:52:53,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:52:53,535 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:52:53,536 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:52:53,536 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:52:53,536 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:52:53,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:52:53,536 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:52:53,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:52:53,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:52:53,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:52:53,539 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:52:53,539 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:52:53,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:52:53,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:52:53,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:52:53,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:52:53,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:52:53,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:52:53,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:53,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:52:53,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:52:53,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:52:53,545 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:52:53,545 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:52:53,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:52:53,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:52:53,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:52:53,546 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_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69fdb971886e5b8539bd7c91c2ed2613ec546f694a2601ecdfc5a8a5474e7fce [2022-12-14 11:52:53,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:52:53,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:52:53,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:52:53,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:52:53,786 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:52:53,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:56,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:52:56,577 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:52:56,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:56,591 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/c88041a9a/63b2d43bd2a44c8cb3b1277301f8c0cd/FLAG856e5fe66 [2022-12-14 11:52:56,602 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/data/c88041a9a/63b2d43bd2a44c8cb3b1277301f8c0cd [2022-12-14 11:52:56,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:52:56,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:52:56,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:56,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:52:56,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:52:56,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:56" (1/1) ... [2022-12-14 11:52:56,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f88bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:56, skipping insertion in model container [2022-12-14 11:52:56,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:52:56" (1/1) ... [2022-12-14 11:52:56,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:52:56,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:52:56,926 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:52:57,254 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:57,259 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,260 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,263 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,263 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,281 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:52:57,283 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:52:57,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:57,299 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 11:52:57,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:52:57,322 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:52:57,373 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:57,374 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,375 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,378 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,379 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,382 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:52:57,384 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:52:57,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:57,392 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:52:57,409 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:52:57,455 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:52:57,456 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:52:57,460 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,460 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:52:57,465 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:52:57,466 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:52:57,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:52:57,578 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:52:57,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57 WrapperNode [2022-12-14 11:52:57,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:52:57,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:57,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:52:57,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:52:57,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,633 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-12-14 11:52:57,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:52:57,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:52:57,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:52:57,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:52:57,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:52:57,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:52:57,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:52:57,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:52:57,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (1/1) ... [2022-12-14 11:52:57,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:52:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:57,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:52:57,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:52:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 11:52:57,723 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:52:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:52:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 11:52:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:52:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 11:52:57,853 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:52:57,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:52:58,058 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:52:58,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:52:58,065 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:52:58,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:58 BoogieIcfgContainer [2022-12-14 11:52:58,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:52:58,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:52:58,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:52:58,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:52:58,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:52:56" (1/3) ... [2022-12-14 11:52:58,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d7780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:58, skipping insertion in model container [2022-12-14 11:52:58,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:52:57" (2/3) ... [2022-12-14 11:52:58,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d7780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:52:58, skipping insertion in model container [2022-12-14 11:52:58,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:58" (3/3) ... [2022-12-14 11:52:58,075 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_64_bad.i [2022-12-14 11:52:58,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:52:58,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:52:58,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:52:58,152 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;@4943af1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:52:58,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:52:58,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 11:52:58,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 11:52:58,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:58,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:58,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:52:58,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:58,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 11:52:58,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:52:58,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2345639] [2022-12-14 11:52:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:58,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:52:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:52:58,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:52:58,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 11:52:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:58,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:52:58,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:52:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:52:58,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:52:58,354 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:52:58,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2345639] [2022-12-14 11:52:58,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2345639] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:58,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:58,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:52:58,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706205450] [2022-12-14 11:52:58,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:52:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:52:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:52:58,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:52:58,391 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:52:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:58,408 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 11:52:58,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:52:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 11:52:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:58,417 INFO L225 Difference]: With dead ends: 23 [2022-12-14 11:52:58,417 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 11:52:58,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:52:58,422 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:58,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:52:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 11:52:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 11:52:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:52:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 11:52:58,456 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 11:52:58,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:58,457 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 11:52:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:52:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 11:52:58,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:52:58,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:58,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:58,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:52:58,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:52:58,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:52:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 11:52:58,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:52:58,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615184156] [2022-12-14 11:52:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:58,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:52:58,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:52:58,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:52:58,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 11:52:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:52:59,063 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:52:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:52:59,242 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 11:52:59,242 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:52:59,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:52:59,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:52:59,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 11:52:59,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:52:59,456 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:52:59,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:52:59,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:52:59 BoogieIcfgContainer [2022-12-14 11:52:59,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:52:59,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:52:59,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:52:59,506 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:52:59,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:52:58" (3/4) ... [2022-12-14 11:52:59,509 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:52:59,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:52:59,510 INFO L158 Benchmark]: Toolchain (without parser) took 2904.52ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 45.9MB in the end (delta: -3.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-12-14 11:52:59,510 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:52:59,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 973.68ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 31.8MB in the end (delta: 10.2MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-12-14 11:52:59,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.77ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 53.6MB in the end (delta: -21.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-14 11:52:59,512 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 81.8MB. Free memory was 53.6MB in the beginning and 51.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:52:59,512 INFO L158 Benchmark]: RCFGBuilder took 402.19ms. Allocated memory is still 81.8MB. Free memory was 51.0MB in the beginning and 35.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:52:59,513 INFO L158 Benchmark]: TraceAbstraction took 1436.66ms. Allocated memory is still 81.8MB. Free memory was 34.7MB in the beginning and 45.9MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:52:59,513 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 81.8MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:52:59,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 973.68ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 31.8MB in the end (delta: 10.2MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.77ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 53.6MB in the end (delta: -21.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 81.8MB. Free memory was 53.6MB in the beginning and 51.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.19ms. Allocated memory is still 81.8MB. Free memory was 51.0MB in the beginning and 35.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1436.66ms. Allocated memory is still 81.8MB. Free memory was 34.7MB in the beginning and 45.9MB in the end (delta: -11.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 81.8MB. Free memory is still 45.9MB. 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={18:13}, argv={18:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data++ VAL [data=2147483647, data++=2147483647, dataPtr={12:0}, dataVoidPtr={12:0}, dataVoidPtr={12:0}, 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 11:52:59,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2255a7e6-7924-4d95-b393-9907fb85c0bb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample