./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- 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 [2022-11-25 23:20:56,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:20:56,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:20:56,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:20:56,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:20:56,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:20:56,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:20:56,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:20:56,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:20:56,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:20:56,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:20:56,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:20:56,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:20:56,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:20:56,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:20:56,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:20:56,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:20:56,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:20:56,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:20:56,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:20:56,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:20:56,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:20:56,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:20:56,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:20:56,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:20:56,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:20:56,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:20:56,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:20:56,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:20:56,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:20:56,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:20:56,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:20:56,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:20:56,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:20:56,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:20:56,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:20:56,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:20:56,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:20:56,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:20:56,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:20:56,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:20:56,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:20:56,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:20:56,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:20:56,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:20:56,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:20:56,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:20:56,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:20:56,719 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:20:56,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:20:56,719 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:20:56,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:20:56,720 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:20:56,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:20:56,721 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:20:56,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:20:56,721 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:20:56,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:20:56,721 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:20:56,721 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:20:56,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:20:56,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:20:56,724 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:20:56,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:20:56,724 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:20:56,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:20:56,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:20:56,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:20:56,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:20:56,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:20:56,726 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:20:56,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:20:56,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:20:56,726 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:20:56,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:20:56,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:20:56,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:20:56,727 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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-11-25 23:20:57,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:20:57,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:20:57,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:20:57,061 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:20:57,062 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:20:57,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:00,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:21:00,613 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:21:00,614 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:00,639 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/1f29ed981/a272ad71f23e4d31a225666addd02583/FLAG5d2ab5d74 [2022-11-25 23:21:00,657 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/1f29ed981/a272ad71f23e4d31a225666addd02583 [2022-11-25 23:21:00,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:21:00,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:21:00,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:00,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:21:00,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:21:00,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:00" (1/1) ... [2022-11-25 23:21:00,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0f4feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:00, skipping insertion in model container [2022-11-25 23:21:00,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:00" (1/1) ... [2022-11-25 23:21:00,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:21:00,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:21:01,158 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:21:01,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:21:01,707 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:01,709 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:01,714 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:01,715 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:01,736 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:21:01,739 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:21:01,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:01,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:21:01,774 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:21:01,836 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:21:01,839 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:01,840 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:01,842 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:01,843 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:01,850 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:21:01,851 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:21:01,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:02,061 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:21:02,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02 WrapperNode [2022-11-25 23:21:02,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:02,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:02,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:21:02,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:21:02,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,161 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-25 23:21:02,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:02,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:21:02,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:21:02,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:21:02,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:21:02,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:21:02,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:21:02,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:21:02,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (1/1) ... [2022-11-25 23:21:02,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:21:02,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:21:02,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:21:02,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:21:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:21:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:21:02,299 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:21:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:21:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:21:02,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:21:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:21:02,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:21:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:21:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:21:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:21:02,452 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:21:02,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:21:02,593 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:21:02,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:21:02,692 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:21:02,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:02 BoogieIcfgContainer [2022-11-25 23:21:02,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:21:02,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:21:02,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:21:02,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:21:02,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:21:00" (1/3) ... [2022-11-25 23:21:02,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891c0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:02, skipping insertion in model container [2022-11-25 23:21:02,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:02" (2/3) ... [2022-11-25 23:21:02,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891c0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:02, skipping insertion in model container [2022-11-25 23:21:02,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:02" (3/3) ... [2022-11-25 23:21:02,735 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:02,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:21:02,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:21:02,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:21:02,833 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;@30baacd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:21:02,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:21:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:21:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:21:02,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:02,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:02,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:21:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1764856781, now seen corresponding path program 1 times [2022-11-25 23:21:02,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:21:02,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400592660] [2022-11-25 23:21:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:02,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:21:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:21:03,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:21:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:21:03,134 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:21:03,136 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:21:03,137 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:21:03,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:21:03,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:21:03,150 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:21:03,161 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:21:03,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:21:03 BoogieIcfgContainer [2022-11-25 23:21:03,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:21:03,209 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:21:03,209 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:21:03,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:21:03,210 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:02" (3/4) ... [2022-11-25 23:21:03,213 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:21:03,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:21:03,215 INFO L158 Benchmark]: Toolchain (without parser) took 2550.18ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 68.6MB in the end (delta: 39.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,216 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:21:03,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1390.82ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 105.6MB in the end (delta: 2.2MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.16ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,223 INFO L158 Benchmark]: Boogie Preprocessor took 59.30ms. Allocated memory is still 138.4MB. Free memory was 102.9MB in the beginning and 101.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,224 INFO L158 Benchmark]: RCFGBuilder took 502.84ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 86.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,225 INFO L158 Benchmark]: TraceAbstraction took 478.46ms. Allocated memory is still 138.4MB. Free memory was 86.2MB in the beginning and 69.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,226 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 138.4MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 758.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:03,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 107.0MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1390.82ms. Allocated memory is still 138.4MB. Free memory was 107.8MB in the beginning and 105.6MB in the end (delta: 2.2MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.16ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 102.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.30ms. Allocated memory is still 138.4MB. Free memory was 102.9MB in the beginning and 101.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.84ms. Allocated memory is still 138.4MB. Free memory was 101.4MB in the beginning and 86.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 478.46ms. Allocated memory is still 138.4MB. Free memory was 86.2MB in the beginning and 69.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 138.4MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 758.7kB). 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: 1583]: 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741830:1073741829}, argv={1073741830:1073741829}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [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)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:21:03,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- 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 [2022-11-25 23:21:05,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:21:05,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:21:05,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:21:05,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:21:05,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:21:05,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:21:05,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:21:05,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:21:05,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:21:05,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:21:05,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:21:05,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:21:05,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:21:05,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:21:05,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:21:05,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:21:05,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:21:05,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:21:05,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:21:05,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:21:05,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:21:05,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:21:05,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:21:05,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:21:05,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:21:05,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:21:05,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:21:05,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:21:05,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:21:05,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:21:05,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:21:05,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:21:05,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:21:05,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:21:05,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:21:05,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:21:05,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:21:05,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:21:05,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:21:05,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:21:05,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:21:05,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:21:05,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:21:05,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:21:05,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:21:05,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:21:05,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:21:05,908 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:21:05,909 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:21:05,909 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:21:05,909 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:21:05,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:21:05,910 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:21:05,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:21:05,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:21:05,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:21:05,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:21:05,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:21:05,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:21:05,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:21:05,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:21:05,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:21:05,913 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:21:05,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:21:05,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:21:05,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:21:05,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:21:05,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:21:05,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:21:05,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:21:05,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:21:05,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:21:05,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:21:05,916 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:21:05,916 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:21:05,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:21:05,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:21:05,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:21:05,917 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_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-11-25 23:21:06,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:21:06,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:21:06,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:21:06,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:21:06,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:21:06,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:09,517 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:21:09,979 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:21:09,980 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:10,009 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/6d28546c5/3ebda69111754e5fa852e350b6a19b39/FLAG1e3438be0 [2022-11-25 23:21:10,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/data/6d28546c5/3ebda69111754e5fa852e350b6a19b39 [2022-11-25 23:21:10,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:21:10,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:21:10,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:10,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:21:10,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:21:10,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:10" (1/1) ... [2022-11-25 23:21:10,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b758ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:10, skipping insertion in model container [2022-11-25 23:21:10,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:10" (1/1) ... [2022-11-25 23:21:10,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:21:10,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:21:10,618 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:21:11,086 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:21:11,092 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:11,093 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:11,095 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:11,096 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:11,119 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:21:11,121 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:21:11,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:11,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:21:11,165 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:21:11,231 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:21:11,233 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:11,234 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:21:11,236 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:11,237 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:21:11,241 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:21:11,243 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:21:11,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:11,433 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:21:11,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11 WrapperNode [2022-11-25 23:21:11,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:11,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:11,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:21:11,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:21:11,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,500 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 23:21:11,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:11,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:21:11,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:21:11,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:21:11,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,546 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:21:11,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:21:11,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:21:11,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:21:11,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (1/1) ... [2022-11-25 23:21:11,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:21:11,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:21:11,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:21:11,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:21:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:21:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:21:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:21:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:21:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:21:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:21:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:21:11,907 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:21:11,909 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:21:12,083 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:21:12,090 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:21:12,090 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:21:12,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:12 BoogieIcfgContainer [2022-11-25 23:21:12,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:21:12,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:21:12,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:21:12,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:21:12,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:21:10" (1/3) ... [2022-11-25 23:21:12,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3bcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:12, skipping insertion in model container [2022-11-25 23:21:12,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:11" (2/3) ... [2022-11-25 23:21:12,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e3bcad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:12, skipping insertion in model container [2022-11-25 23:21:12,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:12" (3/3) ... [2022-11-25 23:21:12,107 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 23:21:12,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:21:12,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:21:12,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:21:12,178 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;@36e5ea4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:21:12,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:21:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:21:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:21:12,194 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:21:12,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:21:12,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:21:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:21:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-11-25 23:21:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:21:12,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802678229] [2022-11-25 23:21:12,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:21:12,219 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 [2022-11-25 23:21:12,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:21:12,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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) [2022-11-25 23:21:12,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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 [2022-11-25 23:21:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:21:12,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:21:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:21:12,575 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:21:12,577 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:21:12,579 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:21:12,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:21:12,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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 [2022-11-25 23:21:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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 [2022-11-25 23:21:12,794 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:21:12,804 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:21:12,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:21:12 BoogieIcfgContainer [2022-11-25 23:21:12,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:21:12,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:21:12,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:21:12,854 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:21:12,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:12" (3/4) ... [2022-11-25 23:21:12,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:21:12,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:21:12,862 INFO L158 Benchmark]: Toolchain (without parser) took 2798.38ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 67.3MB in the beginning and 79.9MB in the end (delta: -12.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-11-25 23:21:12,862 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:21:12,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1363.91ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 67.3MB in the beginning and 82.4MB in the end (delta: -15.1MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-11-25 23:21:12,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.24ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 79.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:12,869 INFO L158 Benchmark]: Boogie Preprocessor took 50.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:12,870 INFO L158 Benchmark]: RCFGBuilder took 539.62ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 63.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:21:12,871 INFO L158 Benchmark]: TraceAbstraction took 756.46ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 80.6MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:21:12,872 INFO L158 Benchmark]: Witness Printer took 7.17ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.9MB in the end (delta: 707.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:21:12,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1363.91ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 67.3MB in the beginning and 82.4MB in the end (delta: -15.1MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.24ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 79.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.17ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.62ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 63.0MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 756.46ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 80.6MB in the end (delta: -18.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.17ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.9MB in the end (delta: 707.1kB). 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: 1583]: 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [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)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:21:12,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd2ec10f-f7e4-462a-8a48-2cbd9c6cc403/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