./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_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_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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_0affde21-825e-4428-bd14-4b34e8f278d1/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- 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 23:50:48,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:50:48,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:50:48,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:50:48,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:50:48,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:50:48,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:50:48,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:50:48,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:50:48,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:50:48,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:50:48,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:50:48,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:50:48,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:50:48,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:50:48,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:50:48,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:50:48,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:50:48,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:50:48,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:50:48,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:50:48,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:50:48,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:50:48,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:50:48,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:50:48,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:50:48,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:50:48,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:50:48,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:50:48,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:50:48,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:50:48,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:50:48,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:50:48,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:50:48,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:50:48,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:50:48,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:50:48,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:50:48,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:50:48,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:50:48,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:50:48,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:50:48,824 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:50:48,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:50:48,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:50:48,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:50:48,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:50:48,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:50:48,827 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:50:48,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:50:48,828 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:50:48,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:50:48,829 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:50:48,829 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:50:48,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:50:48,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:50:48,830 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:50:48,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:50:48,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:50:48,831 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:50:48,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:50:48,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:50:48,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:50:48,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:50:48,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:50:48,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:50:48,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:50:48,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:50:48,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:50:48,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:50:48,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:50:48,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:50:48,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:50:48,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:50:48,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:50:48,836 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:50:48,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:50:48,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:50:48,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:50:48,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:50:48,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:50:48,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:50:48,838 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_0affde21-825e-4428-bd14-4b34e8f278d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2022-11-25 23:50:49,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:50:49,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:50:49,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:50:49,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:50:49,117 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:50:49,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:50:52,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:50:52,589 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:50:52,590 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:50:52,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/76e698d48/3164ccaf02f54feb991f7d334faae594/FLAGa827cd918 [2022-11-25 23:50:52,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/76e698d48/3164ccaf02f54feb991f7d334faae594 [2022-11-25 23:50:52,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:50:52,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:50:52,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:50:52,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:50:52,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:50:52,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:50:52" (1/1) ... [2022-11-25 23:50:52,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e16c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:52, skipping insertion in model container [2022-11-25 23:50:52,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:50:52" (1/1) ... [2022-11-25 23:50:52,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:50:52,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:50:53,114 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:50:53,623 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:50:53,630 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:50:53,632 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:50:53,635 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:50:53,636 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:50:53,663 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:50:53,669 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:50:53,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:50:53,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:50:53,707 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:50:53,755 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:50:53,757 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:50:53,758 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:50:53,761 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:50:53,762 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:50:53,767 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:50:53,770 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:50:53,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:50:53,983 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:50:53,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53 WrapperNode [2022-11-25 23:50:53,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:50:53,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:50:53,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:50:53,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:50:53,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,072 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 23:50:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:50:54,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:50:54,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:50:54,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:50:54,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:50:54,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:50:54,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:50:54,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:50:54,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (1/1) ... [2022-11-25 23:50:54,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:50:54,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:50:54,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:50:54,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:50:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:50:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:50:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:50:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:50:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:50:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:50:54,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:50:54,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:50:54,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:50:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:50:54,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:50:54,391 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:50:54,394 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:50:54,528 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:50:54,591 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:50:54,591 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:50:54,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:50:54 BoogieIcfgContainer [2022-11-25 23:50:54,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:50:54,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:50:54,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:50:54,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:50:54,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:50:52" (1/3) ... [2022-11-25 23:50:54,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f76397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:50:54, skipping insertion in model container [2022-11-25 23:50:54,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:53" (2/3) ... [2022-11-25 23:50:54,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f76397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:50:54, skipping insertion in model container [2022-11-25 23:50:54,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:50:54" (3/3) ... [2022-11-25 23:50:54,619 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:50:54,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:50:54,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:50:54,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:50:54,710 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;@3fbe989d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:50:54,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:50:54,715 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 23:50:54,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:50:54,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:54,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:54,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:50:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1776296088, now seen corresponding path program 1 times [2022-11-25 23:50:54,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:54,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044539045] [2022-11-25 23:50:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:54,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:54,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044539045] [2022-11-25 23:50:54,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044539045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:54,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:54,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:50:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630429708] [2022-11-25 23:50:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:54,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:50:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:50:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:50:55,052 INFO L87 Difference]: Start difference. First 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:50:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:55,119 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-25 23:50:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:50:55,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-25 23:50:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:55,132 INFO L225 Difference]: With dead ends: 29 [2022-11-25 23:50:55,132 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 23:50:55,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:50:55,144 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:55,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:50:55,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 23:50:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 23:50:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 23:50:55,182 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-11-25 23:50:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:55,183 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 23:50:55,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:50:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 23:50:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:50:55,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:55,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:55,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:50:55,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:50:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1963339971, now seen corresponding path program 1 times [2022-11-25 23:50:55,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:55,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794657779] [2022-11-25 23:50:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:55,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:50:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:50:55,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:50:55,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794657779] [2022-11-25 23:50:55,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794657779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:50:55,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:50:55,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:50:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140859452] [2022-11-25 23:50:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:50:55,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:50:55,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:50:55,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:50:55,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:50:55,398 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:50:55,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:50:55,415 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-25 23:50:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:50:55,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-25 23:50:55,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:50:55,417 INFO L225 Difference]: With dead ends: 14 [2022-11-25 23:50:55,417 INFO L226 Difference]: Without dead ends: 13 [2022-11-25 23:50:55,417 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 [2022-11-25 23:50:55,418 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:50:55,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:50:55,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-25 23:50:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-25 23:50:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:50:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-25 23:50:55,424 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-11-25 23:50:55,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:50:55,425 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-25 23:50:55,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:50:55,425 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-25 23:50:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:50:55,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:50:55,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:50:55,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:50:55,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:50:55,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:50:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash -733996883, now seen corresponding path program 1 times [2022-11-25 23:50:55,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:50:55,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502943351] [2022-11-25 23:50:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:50:55,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:50:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:50:55,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:50:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:50:55,531 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:50:55,532 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:50:55,533 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:50:55,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:50:55,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:50:55,539 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:50:55,543 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:50:55,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:50:55 BoogieIcfgContainer [2022-11-25 23:50:55,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:50:55,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:50:55,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:50:55,580 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:50:55,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:50:54" (3/4) ... [2022-11-25 23:50:55,584 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:50:55,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:50:55,585 INFO L158 Benchmark]: Toolchain (without parser) took 2947.31ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 161.0MB in the end (delta: -61.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-25 23:50:55,586 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:50:55,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1347.96ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 151.7MB in the end (delta: -52.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2022-11-25 23:50:55,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.82ms. Allocated memory is still 211.8MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:50:55,588 INFO L158 Benchmark]: Boogie Preprocessor took 60.37ms. Allocated memory is still 211.8MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:50:55,589 INFO L158 Benchmark]: RCFGBuilder took 459.17ms. Allocated memory is still 211.8MB. Free memory was 146.5MB in the beginning and 131.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:50:55,589 INFO L158 Benchmark]: TraceAbstraction took 967.27ms. Allocated memory is still 211.8MB. Free memory was 131.7MB in the beginning and 162.1MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:50:55,590 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 211.8MB. Free memory was 162.1MB in the beginning and 161.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:50:55,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1347.96ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 99.2MB in the beginning and 151.7MB in the end (delta: -52.5MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.82ms. Allocated memory is still 211.8MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.37ms. Allocated memory is still 211.8MB. Free memory was 148.6MB in the beginning and 146.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.17ms. Allocated memory is still 211.8MB. Free memory was 146.5MB in the beginning and 131.8MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 967.27ms. Allocated memory is still 211.8MB. Free memory was 131.7MB in the beginning and 162.1MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 211.8MB. Free memory was 162.1MB in the beginning and 161.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 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); [L1580] 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_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] COND TRUE 1 [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=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] COND TRUE 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] ++data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 26 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 23:50:55,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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_0affde21-825e-4428-bd14-4b34e8f278d1/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- 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 23:50:58,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:50:58,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:50:58,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:50:58,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:50:58,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:50:58,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:50:58,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:50:58,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:50:58,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:50:58,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:50:58,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:50:58,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:50:58,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:50:58,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:50:58,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:50:58,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:50:58,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:50:58,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:50:58,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:50:58,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:50:58,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:50:58,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:50:58,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:50:58,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:50:58,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:50:58,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:50:58,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:50:58,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:50:58,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:50:58,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:50:58,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:50:58,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:50:58,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:50:58,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:50:58,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:50:58,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:50:58,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:50:58,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:50:58,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:50:58,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:50:58,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:50:58,293 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:50:58,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:50:58,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:50:58,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:50:58,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:50:58,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:50:58,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:50:58,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:50:58,298 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:50:58,298 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:50:58,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:50:58,299 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:50:58,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:50:58,301 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:50:58,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:50:58,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:50:58,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:50:58,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:50:58,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:50:58,303 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:50:58,303 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:50:58,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:50:58,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:50:58,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:50:58,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:50:58,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:50:58,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:50:58,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:50:58,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:50:58,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:50:58,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:50:58,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:50:58,307 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:50:58,307 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:50:58,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:50:58,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:50:58,308 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:50:58,308 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_0affde21-825e-4428-bd14-4b34e8f278d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2022-11-25 23:50:58,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:50:58,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:50:58,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:50:58,724 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:50:58,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:50:58,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:51:01,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:51:02,353 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:51:02,353 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:51:02,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/c4f3b2e81/fc4bbb8c6370490e821a1bfd3111be13/FLAG33599cb28 [2022-11-25 23:51:02,416 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/data/c4f3b2e81/fc4bbb8c6370490e821a1bfd3111be13 [2022-11-25 23:51:02,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:51:02,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:51:02,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:02,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:51:02,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:51:02,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:02" (1/1) ... [2022-11-25 23:51:02,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702d1e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:02, skipping insertion in model container [2022-11-25 23:51:02,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:02" (1/1) ... [2022-11-25 23:51:02,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:51:02,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:51:02,934 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:03,483 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:03,490 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:03,493 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:03,506 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:03,508 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:03,543 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:03,553 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:03,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:03,574 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:51:03,607 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:03,699 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:03,700 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:03,703 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:03,706 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:03,707 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:03,711 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:03,717 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:03,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:03,874 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:51:03,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03 WrapperNode [2022-11-25 23:51:03,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:03,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:03,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:51:03,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:51:03,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,932 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2022-11-25 23:51:03,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:03,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:51:03,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:51:03,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:51:03,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:51:03,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:51:03,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:51:03,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:51:03,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (1/1) ... [2022-11-25 23:51:03,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:03,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:04,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:51:04,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:51:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:51:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:51:04,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:51:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:51:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:51:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:51:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:51:04,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:51:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:51:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:51:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:51:04,235 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:51:04,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:51:04,463 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:51:04,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:51:04,470 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:51:04,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:04 BoogieIcfgContainer [2022-11-25 23:51:04,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:51:04,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:51:04,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:51:04,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:51:04,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:51:02" (1/3) ... [2022-11-25 23:51:04,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d304ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:04, skipping insertion in model container [2022-11-25 23:51:04,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:03" (2/3) ... [2022-11-25 23:51:04,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d304ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:04, skipping insertion in model container [2022-11-25 23:51:04,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:04" (3/3) ... [2022-11-25 23:51:04,480 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-11-25 23:51:04,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:51:04,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:51:04,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:51:04,555 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;@2f4e9e42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:51:04,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:51:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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 23:51:04,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:51:04,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:04,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:04,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:51:04,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:04,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1450936690, now seen corresponding path program 1 times [2022-11-25 23:51:04,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:51:04,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815042373] [2022-11-25 23:51:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:04,594 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 23:51:04,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:51:04,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:04,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:04,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:51:04,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:51:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:51:04,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:51:04,745 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:51:04,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815042373] [2022-11-25 23:51:04,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815042373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:04,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:04,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:51:04,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311427589] [2022-11-25 23:51:04,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:04,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:51:04,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:51:04,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:51:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:51:04,786 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:51:04,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:04,830 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2022-11-25 23:51:04,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:51:04,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 23:51:04,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:04,842 INFO L225 Difference]: With dead ends: 39 [2022-11-25 23:51:04,842 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 23:51:04,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:51:04,852 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:04,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:51:04,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 23:51:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 23:51:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:51:04,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-25 23:51:04,902 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2022-11-25 23:51:04,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:04,904 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-25 23:51:04,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:51:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-25 23:51:04,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:51:04,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:04,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:04,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:05,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:05,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:51:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 346229105, now seen corresponding path program 1 times [2022-11-25 23:51:05,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:51:05,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835726767] [2022-11-25 23:51:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:05,130 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 23:51:05,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:51:05,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:05,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 [2022-11-25 23:51:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:05,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:51:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:05,313 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:51:05,314 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:51:05,316 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:51:05,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:51:05,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 [2022-11-25 23:51:05,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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 23:51:05,531 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 23:51:05,534 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:51:05,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:51:05 BoogieIcfgContainer [2022-11-25 23:51:05,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:51:05,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:51:05,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:51:05,572 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:51:05,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:04" (3/4) ... [2022-11-25 23:51:05,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:51:05,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:51:05,582 INFO L158 Benchmark]: Toolchain (without parser) took 3156.42ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 65.5MB in the beginning and 66.3MB in the end (delta: -834.2kB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,588 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:51:05,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1445.69ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 45.9MB in the end (delta: 19.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.60ms. Allocated memory is still 90.2MB. Free memory was 45.9MB in the beginning and 42.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,590 INFO L158 Benchmark]: Boogie Preprocessor took 32.77ms. Allocated memory is still 90.2MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,591 INFO L158 Benchmark]: RCFGBuilder took 504.70ms. Allocated memory is still 90.2MB. Free memory was 40.8MB in the beginning and 52.9MB in the end (delta: -12.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,591 INFO L158 Benchmark]: TraceAbstraction took 1096.74ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.9MB in the beginning and 66.9MB in the end (delta: -15.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-11-25 23:51:05,596 INFO L158 Benchmark]: Witness Printer took 9.40ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 66.3MB in the end (delta: 599.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:51:05,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1445.69ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 45.9MB in the end (delta: 19.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.60ms. Allocated memory is still 90.2MB. Free memory was 45.9MB in the beginning and 42.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.77ms. Allocated memory is still 90.2MB. Free memory was 42.9MB in the beginning and 40.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.70ms. Allocated memory is still 90.2MB. Free memory was 40.8MB in the beginning and 52.9MB in the end (delta: -12.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1096.74ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 51.9MB in the beginning and 66.9MB in the end (delta: -15.0MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 9.40ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 66.3MB in the end (delta: 599.3kB). 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] [L1580] 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) [L1580] 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_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] COND TRUE 1 [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=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] COND TRUE 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] ++data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:51:05,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0affde21-825e-4428-bd14-4b34e8f278d1/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