./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_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_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 --- 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 05:30:03,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:30:03,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:30:03,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:30:03,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:30:03,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:30:03,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:30:03,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:30:03,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:30:03,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:30:03,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:30:03,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:30:03,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:30:03,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:30:03,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:30:03,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:30:03,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:30:03,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:30:03,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:30:03,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:30:03,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:30:03,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:30:03,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:30:03,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:30:03,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:30:03,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:30:03,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:30:03,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:30:03,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:30:03,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:30:03,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:30:03,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:30:03,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:30:03,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:30:03,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:30:03,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:30:03,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:30:03,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:30:03,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:30:03,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:30:03,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:30:03,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:30:03,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:30:03,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:30:03,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:30:03,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:30:03,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:30:03,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:30:03,708 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:30:03,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:30:03,708 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:30:03,708 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:30:03,708 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:30:03,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:30:03,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:30:03,709 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:30:03,709 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:30:03,709 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:30:03,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:30:03,710 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:30:03,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:30:03,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:30:03,712 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:30:03,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:30:03,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:30:03,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:30:03,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:30:03,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:30:03,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:30:03,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:30:03,713 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:30:03,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:30:03,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:30:03,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:30:03,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:30:03,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:30:03,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:30:03,714 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_e73a247f-29f8-4fd1-a0d5-b792803f2865/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 [2022-12-14 05:30:03,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:30:03,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:30:03,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:30:03,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:30:03,907 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:30:03,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:06,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:30:06,740 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:30:06,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:06,753 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/e1724bb2f/a1e05135cdff4ef397d9e52b0aa30b42/FLAGb3f167db8 [2022-12-14 05:30:06,766 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/e1724bb2f/a1e05135cdff4ef397d9e52b0aa30b42 [2022-12-14 05:30:06,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:30:06,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:30:06,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:30:06,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:30:06,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:30:06,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:30:06" (1/1) ... [2022-12-14 05:30:06,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1325fa77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:06, skipping insertion in model container [2022-12-14 05:30:06,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:30:06" (1/1) ... [2022-12-14 05:30:06,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:30:06,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:30:07,091 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:30:07,414 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:30:07,418 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:07,420 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:07,421 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:07,422 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:07,440 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:30:07,443 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:30:07,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:30:07,451 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:30:07,466 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:30:07,497 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:30:07,498 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:07,499 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:07,501 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:07,501 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:07,505 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:30:07,506 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:30:07,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:30:07,613 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:30:07,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07 WrapperNode [2022-12-14 05:30:07,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:30:07,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:30:07,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:30:07,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:30:07,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,650 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-12-14 05:30:07,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:30:07,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:30:07,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:30:07,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:30:07,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:30:07,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:30:07,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:30:07,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:30:07,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (1/1) ... [2022-12-14 05:30:07,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:30:07,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:30:07,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:30:07,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:30:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 05:30:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:30:07,722 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:30:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:30:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 05:30:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:30:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:30:07,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:30:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:30:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:30:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:30:07,823 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:30:07,825 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:30:07,917 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:30:07,942 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:30:07,942 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:30:07,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:07 BoogieIcfgContainer [2022-12-14 05:30:07,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:30:07,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:30:07,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:30:07,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:30:07,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:30:06" (1/3) ... [2022-12-14 05:30:07,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d61d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:30:07, skipping insertion in model container [2022-12-14 05:30:07,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:07" (2/3) ... [2022-12-14 05:30:07,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16d61d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:30:07, skipping insertion in model container [2022-12-14 05:30:07,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:07" (3/3) ... [2022-12-14 05:30:07,950 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:07,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:30:07,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:30:07,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:30:08,003 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;@428fc29d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:30:08,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:30:08,006 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 05:30:08,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:30:08,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:08,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:30:08,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:30:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:08,016 INFO L85 PathProgramCache]: Analyzing trace with hash 108804142, now seen corresponding path program 1 times [2022-12-14 05:30:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:30:08,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650461970] [2022-12-14 05:30:08,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:08,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:30:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:30:08,234 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 05:30:08,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:30:08,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650461970] [2022-12-14 05:30:08,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650461970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:30:08,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:30:08,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:30:08,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805272892] [2022-12-14 05:30:08,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:30:08,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:30:08,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:30:08,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:30:08,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:30:08,263 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 05:30:08,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:30:08,304 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 05:30:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:30:08,311 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 05:30:08,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:30:08,316 INFO L225 Difference]: With dead ends: 15 [2022-12-14 05:30:08,316 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 05:30:08,318 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 05:30:08,320 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:30:08,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:30:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 05:30:08,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 05:30:08,345 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 05:30:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 05:30:08,346 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 05:30:08,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:30:08,347 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 05:30:08,348 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 05:30:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 05:30:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:30:08,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:08,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:30:08,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:30:08,349 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:30:08,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:08,350 INFO L85 PathProgramCache]: Analyzing trace with hash -922038840, now seen corresponding path program 1 times [2022-12-14 05:30:08,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:30:08,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83920675] [2022-12-14 05:30:08,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:08,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:30:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:30:08,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:30:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:30:08,397 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:30:08,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:30:08,399 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:30:08,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:30:08,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:30:08,403 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:30:08,406 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:30:08,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:30:08 BoogieIcfgContainer [2022-12-14 05:30:08,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:30:08,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:30:08,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:30:08,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:30:08,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:07" (3/4) ... [2022-12-14 05:30:08,425 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:30:08,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:30:08,426 INFO L158 Benchmark]: Toolchain (without parser) took 1656.13ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 97.8MB in the beginning and 127.6MB in the end (delta: -29.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-12-14 05:30:08,426 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:30:08,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.34ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 97.8MB in the beginning and 121.5MB in the end (delta: -23.7MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2022-12-14 05:30:08,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.12ms. Allocated memory is still 174.1MB. Free memory was 121.5MB in the beginning and 118.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:30:08,427 INFO L158 Benchmark]: Boogie Preprocessor took 18.20ms. Allocated memory is still 174.1MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:30:08,428 INFO L158 Benchmark]: RCFGBuilder took 274.47ms. Allocated memory is still 174.1MB. Free memory was 116.3MB in the beginning and 101.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 05:30:08,428 INFO L158 Benchmark]: TraceAbstraction took 476.04ms. Allocated memory is still 174.1MB. Free memory was 101.6MB in the beginning and 127.6MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:30:08,428 INFO L158 Benchmark]: Witness Printer took 3.09ms. Allocated memory is still 174.1MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:30:08,430 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 136.3MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.34ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 97.8MB in the beginning and 121.5MB in the end (delta: -23.7MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.12ms. Allocated memory is still 174.1MB. Free memory was 121.5MB in the beginning and 118.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.20ms. Allocated memory is still 174.1MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.47ms. Allocated memory is still 174.1MB. Free memory was 116.3MB in the beginning and 101.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 476.04ms. Allocated memory is still 174.1MB. Free memory was 101.6MB in the beginning and 127.6MB in the end (delta: -26.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.09ms. Allocated memory is still 174.1MB. Free memory is still 127.6MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_preinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483652:2147483650}, argv={2147483652:2147483650}, CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] CWE190_Integer_Overflow__int_fgets_preinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_preinc_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] ++data VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 11 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 05:30:08,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 --- 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 05:30:10,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:30:10,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:30:10,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:30:10,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:30:10,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:30:10,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:30:10,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:30:10,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:30:10,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:30:10,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:30:10,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:30:10,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:30:10,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:30:10,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:30:10,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:30:10,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:30:10,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:30:10,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:30:10,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:30:10,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:30:10,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:30:10,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:30:10,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:30:10,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:30:10,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:30:10,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:30:10,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:30:10,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:30:10,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:30:10,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:30:10,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:30:10,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:30:10,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:30:10,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:30:10,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:30:10,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:30:10,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:30:10,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:30:10,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:30:10,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:30:10,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 05:30:10,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:30:10,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:30:10,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:30:10,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:30:10,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:30:10,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:30:10,209 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:30:10,209 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:30:10,210 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:30:10,210 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:30:10,210 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:30:10,210 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:30:10,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:30:10,211 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:30:10,212 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:30:10,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:30:10,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:30:10,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:30:10,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:30:10,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:30:10,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:30:10,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:30:10,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:30:10,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:30:10,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:30:10,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:30:10,217 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:30:10,217 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:30:10,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:30:10,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:30:10,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:30:10,218 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_e73a247f-29f8-4fd1-a0d5-b792803f2865/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 [2022-12-14 05:30:10,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:30:10,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:30:10,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:30:10,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:30:10,461 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:30:10,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:13,159 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:30:13,394 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:30:13,394 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:13,414 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/1fc10dde2/386ff339f83b477aac6dd3beedb9c300/FLAG87f39ff4d [2022-12-14 05:30:13,428 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/data/1fc10dde2/386ff339f83b477aac6dd3beedb9c300 [2022-12-14 05:30:13,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:30:13,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:30:13,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:30:13,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:30:13,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:30:13,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:30:13" (1/1) ... [2022-12-14 05:30:13,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3678c276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:13, skipping insertion in model container [2022-12-14 05:30:13,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:30:13" (1/1) ... [2022-12-14 05:30:13,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:30:13,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:30:13,791 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:30:14,125 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:30:14,129 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:14,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:14,131 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:14,132 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:14,148 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:30:14,150 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:30:14,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:30:14,161 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:30:14,174 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:30:14,206 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:30:14,207 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:14,207 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:30:14,209 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:14,209 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:30:14,213 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 05:30:14,214 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:30:14,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:30:14,342 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:30:14,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14 WrapperNode [2022-12-14 05:30:14,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:30:14,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:30:14,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:30:14,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:30:14,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,389 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 05:30:14,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:30:14,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:30:14,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:30:14,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:30:14,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:30:14,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:30:14,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:30:14,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:30:14,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (1/1) ... [2022-12-14 05:30:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:30:14,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:30:14,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:30:14,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:30:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 05:30:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:30:14,469 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:30:14,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:30:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 05:30:14,587 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:30:14,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:30:14,699 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:30:14,705 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:30:14,705 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:30:14,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:14 BoogieIcfgContainer [2022-12-14 05:30:14,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:30:14,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:30:14,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:30:14,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:30:14,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:30:13" (1/3) ... [2022-12-14 05:30:14,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78311a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:30:14, skipping insertion in model container [2022-12-14 05:30:14,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:30:14" (2/3) ... [2022-12-14 05:30:14,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78311a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:30:14, skipping insertion in model container [2022-12-14 05:30:14,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:14" (3/3) ... [2022-12-14 05:30:14,714 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2022-12-14 05:30:14,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:30:14,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:30:14,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:30:14,767 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;@56bc7f3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:30:14,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:30:14,771 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 05:30:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 05:30:14,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:14,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:30:14,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:30:14,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 05:30:14,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:30:14,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178063593] [2022-12-14 05:30:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:14,792 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 05:30:14,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:30:14,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:14,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:30:14,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 05:30:14,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:30:14,921 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 05:30:14,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:30:14,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:30:14,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178063593] [2022-12-14 05:30:14,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178063593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:30:14,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:30:14,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:30:14,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749777394] [2022-12-14 05:30:14,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:30:14,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:30:14,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:30:14,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:30:14,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:30:14,952 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 05:30:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:30:14,970 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 05:30:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:30:14,972 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 05:30:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:30:14,976 INFO L225 Difference]: With dead ends: 23 [2022-12-14 05:30:14,976 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 05:30:14,978 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 05:30:14,980 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 05:30:14,981 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 05:30:14,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 05:30:15,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 05:30:15,002 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 05:30:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 05:30:15,003 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 05:30:15,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:30:15,004 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 05:30:15,004 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 05:30:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 05:30:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 05:30:15,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:30:15,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:30:15,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:30:15,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:30:15,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 05:30:15,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:30:15,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1872450290] [2022-12-14 05:30:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:30:15,213 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 05:30:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:30:15,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:30:15,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:30:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:30:15,429 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 05:30:15,429 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:30:15,430 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:30:15,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:30:15,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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 05:30:15,641 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:30:15,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:30:15,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:30:15 BoogieIcfgContainer [2022-12-14 05:30:15,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:30:15,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:30:15,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:30:15,687 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:30:15,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:30:14" (3/4) ... [2022-12-14 05:30:15,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:30:15,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:30:15,691 INFO L158 Benchmark]: Toolchain (without parser) took 2259.42ms. Allocated memory is still 75.5MB. Free memory was 51.7MB in the beginning and 31.8MB in the end (delta: 19.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,691 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:30:15,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 909.71ms. Allocated memory is still 75.5MB. Free memory was 51.7MB in the beginning and 43.6MB in the end (delta: 8.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.90ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 40.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,692 INFO L158 Benchmark]: Boogie Preprocessor took 27.94ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,692 INFO L158 Benchmark]: RCFGBuilder took 288.41ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 44.3MB in the end (delta: -5.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,693 INFO L158 Benchmark]: TraceAbstraction took 977.78ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 32.2MB in the end (delta: 11.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-12-14 05:30:15,693 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 75.5MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:30:15,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 909.71ms. Allocated memory is still 75.5MB. Free memory was 51.7MB in the beginning and 43.6MB in the end (delta: 8.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.90ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 40.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.94ms. Allocated memory is still 75.5MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.41ms. Allocated memory is still 75.5MB. Free memory was 38.5MB in the beginning and 44.3MB in the end (delta: -5.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * TraceAbstraction took 977.78ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 32.2MB in the end (delta: 11.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 75.5MB. Free memory is still 31.8MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_preinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] CWE190_Integer_Overflow__int_fgets_preinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_preinc_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] ++data VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 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 05:30:15,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e73a247f-29f8-4fd1-a0d5-b792803f2865/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