./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bf7a6a41434023d5fc39841ce049ae649f51ab7e37e83c0c7aaceb626bb7505 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:10:58,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:10:58,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:10:58,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:10:58,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:10:58,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:10:58,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:10:58,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:10:58,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:10:58,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:10:58,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:10:58,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:10:58,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:10:58,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:10:58,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:10:58,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:10:58,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:10:58,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:10:58,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:10:58,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:10:58,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:10:58,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:10:58,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:10:58,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:10:58,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:10:58,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:10:58,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:10:58,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:10:58,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:10:58,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:10:58,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:10:58,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:10:58,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:10:58,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:10:58,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:10:58,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:10:58,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:10:58,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:10:58,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:10:58,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:10:58,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:10:58,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:10:58,616 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:10:58,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:10:58,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:10:58,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:10:58,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:10:58,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:10:58,619 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:10:58,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:10:58,619 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:10:58,619 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:10:58,620 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:10:58,620 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:10:58,620 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:10:58,621 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:10:58,621 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:10:58,621 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:10:58,621 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:10:58,621 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:10:58,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:10:58,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:10:58,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:10:58,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:10:58,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:10:58,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:10:58,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:10:58,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:10:58,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:10:58,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:10:58,625 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:10:58,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:10:58,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:10:58,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:10:58,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:10:58,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:10:58,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:10:58,626 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_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bf7a6a41434023d5fc39841ce049ae649f51ab7e37e83c0c7aaceb626bb7505 [2022-11-26 01:10:58,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:10:58,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:10:58,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:10:58,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:10:58,947 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:10:58,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:02,107 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:02,561 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:02,562 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:02,592 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/869def4d4/e97c1c88313d43d2847ae58704e6b5b1/FLAGe4f15c34d [2022-11-26 01:11:02,611 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/869def4d4/e97c1c88313d43d2847ae58704e6b5b1 [2022-11-26 01:11:02,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:02,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:02,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:02,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:02,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:02,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:02" (1/1) ... [2022-11-26 01:11:02,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740dfde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:02, skipping insertion in model container [2022-11-26 01:11:02,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:02" (1/1) ... [2022-11-26 01:11:02,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:02,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:03,089 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:03,616 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:03,623 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:03,625 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:03,627 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:03,628 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:03,650 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:11:03,655 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:03,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:03,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:03,688 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:03,753 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:03,759 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:03,761 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:03,767 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:03,769 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:03,783 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:11:03,795 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:03,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:03,946 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:03,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03 WrapperNode [2022-11-26 01:11:03,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:03,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:03,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:03,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:03,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:03,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,030 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-26 01:11:04,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:04,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:04,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:04,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:04,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:04,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:04,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:04,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:04,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (1/1) ... [2022-11-26 01:11:04,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:04,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:04,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:04,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:11:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:04,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-26 01:11:04,185 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-26 01:11:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:11:04,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:04,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:04,504 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:04,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:04,543 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:04,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:04 BoogieIcfgContainer [2022-11-26 01:11:04,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:04,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:04,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:04,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:04,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:02" (1/3) ... [2022-11-26 01:11:04,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50418094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:04, skipping insertion in model container [2022-11-26 01:11:04,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:03" (2/3) ... [2022-11-26 01:11:04,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50418094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:04, skipping insertion in model container [2022-11-26 01:11:04,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:04" (3/3) ... [2022-11-26 01:11:04,556 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:04,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:04,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:04,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:04,627 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;@5157bb7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:04,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:04,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 01:11:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 01:11:04,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:04,642 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:04,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:04,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:04,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2131051545, now seen corresponding path program 1 times [2022-11-26 01:11:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:04,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120011720] [2022-11-26 01:11:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 01:11:05,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:05,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120011720] [2022-11-26 01:11:05,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120011720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:11:05,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577317771] [2022-11-26 01:11:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:05,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:11:05,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:05,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:11:05,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:11:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:05,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:11:05,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:11:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:11:05,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:11:05,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577317771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:05,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:11:05,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 01:11:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265759296] [2022-11-26 01:11:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:05,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:05,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:11:05,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:05,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:11:05,353 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 01:11:05,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:05,402 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2022-11-26 01:11:05,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2022-11-26 01:11:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:05,411 INFO L225 Difference]: With dead ends: 44 [2022-11-26 01:11:05,412 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 01:11:05,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:11:05,418 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:05,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 48 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:05,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 01:11:05,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 01:11:05,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 01:11:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-11-26 01:11:05,460 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2022-11-26 01:11:05,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:05,462 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-11-26 01:11:05,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 01:11:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-11-26 01:11:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 01:11:05,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:05,464 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:05,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:05,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 01:11:05,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:05,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:05,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1437582476, now seen corresponding path program 1 times [2022-11-26 01:11:05,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:05,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706981526] [2022-11-26 01:11:05,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:05,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 01:11:05,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:11:05,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706981526] [2022-11-26 01:11:05,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706981526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:05,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:05,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:11:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608873227] [2022-11-26 01:11:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:05,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:05,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:11:05,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:05,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:05,760 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 01:11:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:05,775 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-26 01:11:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-26 01:11:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:05,777 INFO L225 Difference]: With dead ends: 20 [2022-11-26 01:11:05,777 INFO L226 Difference]: Without dead ends: 19 [2022-11-26 01:11:05,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:05,779 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:05,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:05,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-26 01:11:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-26 01:11:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 01:11:05,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-11-26 01:11:05,784 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 19 [2022-11-26 01:11:05,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:05,785 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-11-26 01:11:05,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 01:11:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-11-26 01:11:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 01:11:05,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:05,786 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:05,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:11:05,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:05,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:05,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1615383866, now seen corresponding path program 1 times [2022-11-26 01:11:05,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:11:05,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173170428] [2022-11-26 01:11:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:05,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:11:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:05,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:05,893 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:11:05,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:05,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:05,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:05,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:11:05,908 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 01:11:05,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:05,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:05 BoogieIcfgContainer [2022-11-26 01:11:05,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:05,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:05,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:05,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:05,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:04" (3/4) ... [2022-11-26 01:11:05,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:11:05,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:05,960 INFO L158 Benchmark]: Toolchain (without parser) took 3340.08ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 61.1MB in the end (delta: 70.7MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,960 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:05,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1325.79ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 67.5MB in the end (delta: 64.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.26ms. Allocated memory is still 165.7MB. Free memory was 67.5MB in the beginning and 133.5MB in the end (delta: -66.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,962 INFO L158 Benchmark]: Boogie Preprocessor took 55.05ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 132.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:05,962 INFO L158 Benchmark]: RCFGBuilder took 431.22ms. Allocated memory is still 165.7MB. Free memory was 132.4MB in the beginning and 117.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,963 INFO L158 Benchmark]: TraceAbstraction took 1405.58ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 62.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,963 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 165.7MB. Free memory was 62.2MB in the beginning and 61.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:05,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1325.79ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 67.5MB in the end (delta: 64.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.26ms. Allocated memory is still 165.7MB. Free memory was 67.5MB in the beginning and 133.5MB in the end (delta: -66.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.05ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 132.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 431.22ms. Allocated memory is still 165.7MB. Free memory was 132.4MB in the beginning and 117.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1405.58ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 62.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 165.7MB. Free memory was 62.2MB in the beginning and 61.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1566] RET globalReturnsTrue() VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, 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, 8 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 48 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:11:05,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bf7a6a41434023d5fc39841ce049ae649f51ab7e37e83c0c7aaceb626bb7505 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 01:11:08,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:11:08,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:11:08,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:11:08,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:11:08,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:11:08,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:11:08,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:11:08,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:11:08,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:11:08,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:11:08,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:11:08,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:11:08,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:11:08,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:11:08,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:11:08,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:11:08,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:11:08,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:11:08,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:11:08,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:11:08,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:11:08,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:11:08,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:11:08,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:11:08,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:11:08,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:11:08,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:11:08,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:11:08,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:11:08,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:11:08,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:11:08,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:11:08,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:11:08,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:11:08,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:11:08,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:11:08,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:11:08,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:11:08,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:11:08,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:11:08,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:11:08,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:11:08,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:11:08,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:11:08,651 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:11:08,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:11:08,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:11:08,652 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:11:08,653 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:11:08,653 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:11:08,653 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:11:08,655 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:11:08,655 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:11:08,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:11:08,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:11:08,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:11:08,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:11:08,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:11:08,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:11:08,657 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:11:08,658 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:11:08,658 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:11:08,658 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:11:08,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:11:08,659 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:11:08,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:11:08,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:11:08,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:11:08,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:11:08,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:08,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:11:08,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:11:08,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:11:08,662 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:11:08,662 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:11:08,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:11:08,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:11:08,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:11:08,663 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_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bf7a6a41434023d5fc39841ce049ae649f51ab7e37e83c0c7aaceb626bb7505 [2022-11-26 01:11:09,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:11:09,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:11:09,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:11:09,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:11:09,129 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:11:09,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:12,105 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:11:12,492 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:11:12,492 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:12,526 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/f79d9cc85/97df390a8f144bd9a2b17a87a208bfee/FLAG629d645e2 [2022-11-26 01:11:12,548 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/data/f79d9cc85/97df390a8f144bd9a2b17a87a208bfee [2022-11-26 01:11:12,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:11:12,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:11:12,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:12,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:11:12,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:11:12,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:12" (1/1) ... [2022-11-26 01:11:12,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e54079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:12, skipping insertion in model container [2022-11-26 01:11:12,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:11:12" (1/1) ... [2022-11-26 01:11:12,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:11:12,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:11:12,996 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:13,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:13,605 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,606 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,608 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,608 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,668 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:11:13,674 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:13,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:13,689 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:11:13,709 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:11:13,753 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:11:13,755 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,756 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:11:13,758 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,759 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:11:13,763 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:11:13,765 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:11:13,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:11:13,934 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:11:13,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13 WrapperNode [2022-11-26 01:11:13,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:11:13,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:13,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:11:13,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:11:13,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:13,994 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-26 01:11:13,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:11:13,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:11:13,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:11:13,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:11:14,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,030 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:11:14,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:11:14,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:11:14,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:11:14,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (1/1) ... [2022-11-26 01:11:14,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:11:14,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:11:14,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:11:14,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:11:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:11:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:11:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:11:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-26 01:11:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-26 01:11:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:11:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:11:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:11:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:11:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:11:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:11:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:11:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 01:11:14,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:11:14,370 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:11:14,575 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:11:14,592 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:11:14,592 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:11:14,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14 BoogieIcfgContainer [2022-11-26 01:11:14,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:11:14,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:11:14,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:11:14,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:11:14,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:11:12" (1/3) ... [2022-11-26 01:11:14,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1fc7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:14, skipping insertion in model container [2022-11-26 01:11:14,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:11:13" (2/3) ... [2022-11-26 01:11:14,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1fc7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:11:14, skipping insertion in model container [2022-11-26 01:11:14,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14" (3/3) ... [2022-11-26 01:11:14,610 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_11_bad.i [2022-11-26 01:11:14,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:11:14,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:11:14,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:11:14,679 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;@58ed8415, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:11:14,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:11:14,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 01:11:14,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 01:11:14,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:14,693 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:14,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:14,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:14,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1814819498, now seen corresponding path program 1 times [2022-11-26 01:11:14,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:14,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333395805] [2022-11-26 01:11:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:14,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:14,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:14,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:11:14,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 01:11:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:14,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 01:11:14,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:11:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:11:14,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:11:14,997 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:11:14,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333395805] [2022-11-26 01:11:14,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333395805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:15,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:15,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:11:15,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154573207] [2022-11-26 01:11:15,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:15,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:11:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:11:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:11:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:11:15,070 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 01:11:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:15,155 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-26 01:11:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:11:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-11-26 01:11:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:15,167 INFO L225 Difference]: With dead ends: 51 [2022-11-26 01:11:15,167 INFO L226 Difference]: Without dead ends: 23 [2022-11-26 01:11:15,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:11:15,175 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-26 01:11:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-26 01:11:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 01:11:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-26 01:11:15,221 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 20 [2022-11-26 01:11:15,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:15,223 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-26 01:11:15,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 01:11:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-26 01:11:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-26 01:11:15,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:15,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:15,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:15,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:15,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:15,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash -761264401, now seen corresponding path program 1 times [2022-11-26 01:11:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:15,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858710325] [2022-11-26 01:11:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:15,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:15,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:15,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:11:15,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 01:11:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:11:15,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:11:15,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:11:15,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 01:11:15,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:11:15,587 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:11:15,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858710325] [2022-11-26 01:11:15,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858710325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:11:15,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:11:15,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:11:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501749550] [2022-11-26 01:11:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:11:15,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:11:15,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:11:15,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:11:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:15,591 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 01:11:15,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:11:15,603 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-26 01:11:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:11:15,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2022-11-26 01:11:15,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:11:15,605 INFO L225 Difference]: With dead ends: 23 [2022-11-26 01:11:15,605 INFO L226 Difference]: Without dead ends: 22 [2022-11-26 01:11:15,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:11:15,606 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:11:15,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 43 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:11:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-26 01:11:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-26 01:11:15,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 01:11:15,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-26 01:11:15,613 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2022-11-26 01:11:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:11:15,614 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-26 01:11:15,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-26 01:11:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-26 01:11:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 01:11:15,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:11:15,615 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:11:15,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:15,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:15,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:11:15,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:11:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2124359883, now seen corresponding path program 1 times [2022-11-26 01:11:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:11:15,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137297845] [2022-11-26 01:11:15,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:11:15,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:15,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:11:15,832 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 01:11:15,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-26 01:11:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:15,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:11:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:11:16,063 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:11:16,064 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:11:16,065 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:11:16,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:11:16,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:11:16,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 01:11:16,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 01:11:16,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:11:16,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:11:16 BoogieIcfgContainer [2022-11-26 01:11:16,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:11:16,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:11:16,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:11:16,315 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:11:16,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:11:14" (3/4) ... [2022-11-26 01:11:16,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:11:16,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:11:16,320 INFO L158 Benchmark]: Toolchain (without parser) took 3767.86ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 53.1MB in the beginning and 46.5MB in the end (delta: 6.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,320 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:16,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1376.05ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 52.8MB in the beginning and 52.1MB in the end (delta: 678.2kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.37ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,322 INFO L158 Benchmark]: Boogie Preprocessor took 40.65ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,322 INFO L158 Benchmark]: RCFGBuilder took 550.56ms. Allocated memory is still 98.6MB. Free memory was 47.0MB in the beginning and 60.9MB in the end (delta: -13.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,323 INFO L158 Benchmark]: TraceAbstraction took 1714.58ms. Allocated memory is still 98.6MB. Free memory was 60.4MB in the beginning and 46.5MB in the end (delta: 13.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-26 01:11:16,323 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 98.6MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:11:16,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1376.05ms. Allocated memory was 77.6MB in the beginning and 98.6MB in the end (delta: 21.0MB). Free memory was 52.8MB in the beginning and 52.1MB in the end (delta: 678.2kB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.37ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.65ms. Allocated memory is still 98.6MB. Free memory was 49.1MB in the beginning and 47.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.56ms. Allocated memory is still 98.6MB. Free memory was 47.0MB in the beginning and 60.9MB in the end (delta: -13.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1714.58ms. Allocated memory is still 98.6MB. Free memory was 60.4MB in the beginning and 46.5MB in the end (delta: 13.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 98.6MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 142 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 01:11:16,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6b97cb-8aa7-4de3-ad5d-6ce56afc8865/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample