./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:00:42,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:00:42,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:00:42,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:00:42,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:00:42,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:00:42,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:00:42,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:00:42,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:00:42,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:00:42,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:00:42,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:00:42,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:00:42,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:00:42,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:00:42,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:00:42,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:00:42,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:00:42,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:00:42,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:00:42,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:00:42,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:00:42,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:00:42,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:00:42,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:00:42,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:00:42,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:00:42,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:00:42,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:00:42,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:00:42,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:00:42,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:00:42,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:00:42,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:00:42,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:00:42,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:00:42,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:00:42,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:00:42,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:00:42,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:00:42,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:00:42,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 16:00:42,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:00:42,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:00:42,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:00:42,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:00:42,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:00:42,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:00:42,392 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:00:42,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:00:42,392 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:00:42,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 16:00:42,392 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:00:42,393 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:00:42,393 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 16:00:42,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 16:00:42,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:00:42,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 16:00:42,394 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 16:00:42,394 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 16:00:42,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:00:42,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 16:00:42,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:00:42,396 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:00:42,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:00:42,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:00:42,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:00:42,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:42,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:00:42,397 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 16:00:42,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:00:42,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:00:42,397 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 16:00:42,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 16:00:42,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:00:42,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:00:42,398 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_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d [2022-12-14 16:00:42,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:00:42,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:00:42,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:00:42,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:00:42,608 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:00:42,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:45,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:00:45,453 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:00:45,453 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:45,468 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/1121141ed/5cd902e7fd1d470caaa55ea774a91736/FLAGd102a7d55 [2022-12-14 16:00:45,480 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/1121141ed/5cd902e7fd1d470caaa55ea774a91736 [2022-12-14 16:00:45,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:00:45,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:00:45,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:45,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:00:45,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:00:45,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:45" (1/1) ... [2022-12-14 16:00:45,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cdae9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:45, skipping insertion in model container [2022-12-14 16:00:45,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:45" (1/1) ... [2022-12-14 16:00:45,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:00:45,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:00:45,844 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 16:00:46,276 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:00:46,280 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:46,282 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:46,284 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:46,284 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:46,642 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 16:00:46,646 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 16:00:46,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:46,654 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:00:46,666 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 16:00:46,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:00:46,696 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:46,697 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:46,698 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:46,699 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:46,708 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 16:00:46,711 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 16:00:46,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:46,976 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:00:46,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46 WrapperNode [2022-12-14 16:00:46,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:46,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:46,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:00:46,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:00:46,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,030 INFO L138 Inliner]: procedures = 938, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-14 16:00:47,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:47,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:00:47,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:00:47,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:00:47,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:00:47,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:00:47,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:00:47,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:00:47,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (1/1) ... [2022-12-14 16:00:47,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:47,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:00:47,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:00:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 16:00:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 16:00:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 16:00:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 16:00:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 16:00:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:00:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 16:00:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 16:00:47,228 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:00:47,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:00:47,340 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:00:47,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:00:47,360 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 16:00:47,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:47 BoogieIcfgContainer [2022-12-14 16:00:47,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:00:47,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:00:47,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:00:47,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:00:47,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:00:45" (1/3) ... [2022-12-14 16:00:47,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a3594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:47, skipping insertion in model container [2022-12-14 16:00:47,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:46" (2/3) ... [2022-12-14 16:00:47,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106a3594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:47, skipping insertion in model container [2022-12-14 16:00:47,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:47" (3/3) ... [2022-12-14 16:00:47,369 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:47,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:00:47,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 16:00:47,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:00:47,421 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;@57e6f669, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:00:47,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 16:00:47,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 16:00:47,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 16:00:47,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:47,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:00:47,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 16:00:47,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2022-12-14 16:00:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:47,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369965110] [2022-12-14 16:00:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:47,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 16:00:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 16:00:47,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 16:00:47,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369965110] [2022-12-14 16:00:47,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369965110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 16:00:47,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 16:00:47,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 16:00:47,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248347814] [2022-12-14 16:00:47,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 16:00:47,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 16:00:47,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 16:00:47,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 16:00:47,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:00:47,633 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 6.0) 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) [2022-12-14 16:00:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 16:00:47,655 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 16:00:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 16:00:47,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) 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 [2022-12-14 16:00:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 16:00:47,662 INFO L225 Difference]: With dead ends: 15 [2022-12-14 16:00:47,663 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 16:00:47,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 16:00:47,667 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 16:00:47,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 16:00:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 16:00:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 16:00:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 16:00:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 16:00:47,694 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 16:00:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 16:00:47,695 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 16:00:47,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) 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) [2022-12-14 16:00:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 16:00:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 16:00:47,696 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:47,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:00:47,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 16:00:47,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 16:00:47,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2022-12-14 16:00:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 16:00:47,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924085203] [2022-12-14 16:00:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:47,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 16:00:47,735 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 16:00:47,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230025597] [2022-12-14 16:00:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:47,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:47,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:47,737 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 16:00:47,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 16:00:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 16:00:47,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 16:00:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 16:00:47,912 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 16:00:47,913 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 16:00:47,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 16:00:47,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 16:00:47,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 16:00:48,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 16:00:48,129 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 16:00:48,140 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 16:00:48,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:00:48 BoogieIcfgContainer [2022-12-14 16:00:48,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 16:00:48,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 16:00:48,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 16:00:48,192 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 16:00:48,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:47" (3/4) ... [2022-12-14 16:00:48,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 16:00:48,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 16:00:48,195 INFO L158 Benchmark]: Toolchain (without parser) took 2711.32ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 78.7MB in the beginning and 116.3MB in the end (delta: -37.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-14 16:00:48,195 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:00:48,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1492.08ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 78.1MB in the beginning and 98.7MB in the end (delta: -20.7MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-12-14 16:00:48,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.58ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 95.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:00:48,197 INFO L158 Benchmark]: Boogie Preprocessor took 26.83ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 16:00:48,197 INFO L158 Benchmark]: RCFGBuilder took 304.09ms. Allocated memory is still 167.8MB. Free memory was 93.5MB in the beginning and 76.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 16:00:48,198 INFO L158 Benchmark]: TraceAbstraction took 826.70ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 117.4MB in the end (delta: -40.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:00:48,198 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 167.8MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 16:00:48,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1492.08ms. Allocated memory was 123.7MB in the beginning and 167.8MB in the end (delta: 44.0MB). Free memory was 78.1MB in the beginning and 98.7MB in the end (delta: -20.7MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.58ms. Allocated memory is still 167.8MB. Free memory was 98.7MB in the beginning and 95.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.83ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.09ms. Allocated memory is still 167.8MB. Free memory was 93.5MB in the beginning and 76.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 826.70ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 117.4MB in the end (delta: -40.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 167.8MB. Free memory is still 116.3MB. 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: 1856]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1844. 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); [L1864] 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) [L1864] RET printLine("Calling bad()...") VAL [\old(argc)=19, argc=19, argv={18:13}, argv={18:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1865] CALL CWE190_Integer_Overflow__int_fgets_square_32_bad() [L1834] int data; [L1835] int *dataPtr1 = &data; [L1836] int *dataPtr2 = &data; [L1837] data = 0 [L1839] EXPR \read(*dataPtr1) [L1839] int data = *dataPtr1; [L1841] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1842] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1844] data = atoi(inputBuffer) [L1841] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1851] *dataPtr1 = data [L1854] EXPR \read(*dataPtr2) [L1854] int data = *dataPtr2; [L1856] data * data VAL [data={7:0}, data=-536608769, data=-536608769, dataPtr1={7:0}, dataPtr2={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1856]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 16:00:48,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 16:00:49,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 16:00:49,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 16:00:49,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 16:00:49,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 16:00:49,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 16:00:49,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 16:00:49,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 16:00:49,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 16:00:49,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 16:00:49,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 16:00:49,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 16:00:49,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 16:00:49,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 16:00:49,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 16:00:49,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 16:00:49,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 16:00:49,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 16:00:49,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 16:00:49,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 16:00:49,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 16:00:49,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 16:00:49,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 16:00:49,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 16:00:49,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 16:00:49,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 16:00:49,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 16:00:49,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 16:00:49,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 16:00:49,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 16:00:49,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 16:00:49,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 16:00:49,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 16:00:49,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 16:00:49,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 16:00:49,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 16:00:49,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 16:00:49,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 16:00:49,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 16:00:49,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 16:00:49,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 16:00:49,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 16:00:49,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 16:00:49,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 16:00:49,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 16:00:49,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 16:00:49,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 16:00:49,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 16:00:49,960 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 16:00:49,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 16:00:49,960 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 16:00:49,960 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 16:00:49,960 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 16:00:49,961 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 16:00:49,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 16:00:49,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 16:00:49,963 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 16:00:49,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 16:00:49,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 16:00:49,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 16:00:49,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 16:00:49,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 16:00:49,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 16:00:49,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 16:00:49,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:49,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 16:00:49,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 16:00:49,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 16:00:49,965 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_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d [2022-12-14 16:00:50,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 16:00:50,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 16:00:50,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 16:00:50,224 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 16:00:50,225 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 16:00:50,226 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:52,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 16:00:53,126 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 16:00:53,126 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:53,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/9c66f7aac/211bc4130cae477c8463ad4460a70c6a/FLAGa126ad914 [2022-12-14 16:00:53,153 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/data/9c66f7aac/211bc4130cae477c8463ad4460a70c6a [2022-12-14 16:00:53,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 16:00:53,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 16:00:53,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:53,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 16:00:53,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 16:00:53,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:53" (1/1) ... [2022-12-14 16:00:53,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28488677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:53, skipping insertion in model container [2022-12-14 16:00:53,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:00:53" (1/1) ... [2022-12-14 16:00:53,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 16:00:53,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 16:00:53,515 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 16:00:53,921 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:00:53,926 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:53,928 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:53,930 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:53,931 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:54,307 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 16:00:54,311 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 16:00:54,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:54,321 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 16:00:54,334 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 16:00:54,365 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 16:00:54,366 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:54,367 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 16:00:54,368 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:54,369 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 16:00:54,377 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 16:00:54,378 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 16:00:54,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 16:00:54,614 INFO L208 MainTranslator]: Completed translation [2022-12-14 16:00:54,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54 WrapperNode [2022-12-14 16:00:54,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 16:00:54,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:54,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 16:00:54,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 16:00:54,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,661 INFO L138 Inliner]: procedures = 943, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-14 16:00:54,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 16:00:54,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 16:00:54,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 16:00:54,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 16:00:54,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 16:00:54,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 16:00:54,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 16:00:54,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 16:00:54,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (1/1) ... [2022-12-14 16:00:54,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 16:00:54,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 16:00:54,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 16:00:54,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 16:00:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 16:00:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 16:00:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 16:00:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 16:00:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 16:00:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 16:00:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 16:00:54,863 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 16:00:54,864 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 16:00:56,118 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 16:00:56,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 16:00:56,123 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 16:00:56,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:56 BoogieIcfgContainer [2022-12-14 16:00:56,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 16:00:56,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 16:00:56,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 16:00:56,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 16:00:56,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:00:53" (1/3) ... [2022-12-14 16:00:56,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a69b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:56, skipping insertion in model container [2022-12-14 16:00:56,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:00:54" (2/3) ... [2022-12-14 16:00:56,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a69b07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:00:56, skipping insertion in model container [2022-12-14 16:00:56,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:00:56" (3/3) ... [2022-12-14 16:00:56,132 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-12-14 16:00:56,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 16:00:56,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 16:00:56,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 16:00:56,195 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;@480eb283, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 16:00:56,196 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 16:00:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 16:00:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 16:00:56,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 16:00:56,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 16:00:56,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 16:00:56,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 16:00:56,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-14 16:00:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 16:00:56,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144559465] [2022-12-14 16:00:56,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 16:00:56,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 16:00:56,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 16:00:56,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 16:00:56,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a87fc49-7cb9-41cb-9361-a5464e816abf/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process