./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb --- 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 13:16:06,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:16:06,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:16:06,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:16:06,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:16:06,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:16:06,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:16:06,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:16:06,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:16:06,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:16:06,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:16:06,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:16:06,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:16:06,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:16:06,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:16:06,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:16:06,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:16:06,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:16:06,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:16:06,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:16:06,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:16:06,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:16:06,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:16:06,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:16:06,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:16:06,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:16:06,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:16:06,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:16:06,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:16:06,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:16:06,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:16:06,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:16:06,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:16:06,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:16:06,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:16:06,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:16:06,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:16:06,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:16:06,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:16:06,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:16:06,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:16:06,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:16:06,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:16:06,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:16:06,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:16:06,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:16:06,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:16:06,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:16:06,621 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:16:06,621 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:16:06,621 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:16:06,621 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:16:06,621 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:16:06,621 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:16:06,622 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:16:06,622 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:16:06,622 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:16:06,622 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:16:06,623 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:16:06,623 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:16:06,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:16:06,623 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:16:06,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:16:06,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:16:06,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:16:06,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:16:06,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:16:06,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:06,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:16:06,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb [2022-12-14 13:16:06,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:16:06,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:16:06,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:16:06,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:16:06,833 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:16:06,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:09,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:16:09,648 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:16:09,648 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:09,676 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/70cd08c9f/7cbf0e3b9ec94433b93ff43626ac62c9/FLAGee873370d [2022-12-14 13:16:09,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/70cd08c9f/7cbf0e3b9ec94433b93ff43626ac62c9 [2022-12-14 13:16:09,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:16:09,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:16:09,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:09,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:16:09,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:16:09,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:09" (1/1) ... [2022-12-14 13:16:09,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf42ee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:09, skipping insertion in model container [2022-12-14 13:16:09,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:09" (1/1) ... [2022-12-14 13:16:09,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:16:09,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:16:10,054 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:16:10,365 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:16:10,371 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:10,373 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:10,376 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:10,377 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:10,402 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:16:10,406 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:16:10,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:10,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:16:10,444 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:16:10,490 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:16:10,491 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:10,493 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:10,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:10,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:10,500 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:16:10,501 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:16:10,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:10,651 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:16:10,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10 WrapperNode [2022-12-14 13:16:10,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:10,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:10,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:16:10,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:16:10,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,688 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56 [2022-12-14 13:16:10,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:10,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:16:10,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:16:10,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:16:10,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:16:10,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:16:10,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:16:10,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:16:10,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (1/1) ... [2022-12-14 13:16:10,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:16:10,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:16:10,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:16:10,777 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:16:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:16:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:16:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:16:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:16:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:16:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:16:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:16:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:16:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:16:10,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:16:10,900 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:16:10,902 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:16:11,033 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:16:11,067 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:16:11,068 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:16:11,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:11 BoogieIcfgContainer [2022-12-14 13:16:11,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:16:11,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:16:11,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:16:11,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:16:11,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:16:09" (1/3) ... [2022-12-14 13:16:11,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6393ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:16:11, skipping insertion in model container [2022-12-14 13:16:11,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:10" (2/3) ... [2022-12-14 13:16:11,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6393ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:16:11, skipping insertion in model container [2022-12-14 13:16:11,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:11" (3/3) ... [2022-12-14 13:16:11,082 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:11,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:16:11,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:16:11,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:16:11,169 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;@498fa82e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:16:11,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:16:11,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 13:16:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:16:11,183 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:16:11,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:16:11,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:16:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:16:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1744098009, now seen corresponding path program 1 times [2022-12-14 13:16:11,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:16:11,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310598191] [2022-12-14 13:16:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:16:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:16:11,449 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 13:16:11,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:16:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310598191] [2022-12-14 13:16:11,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310598191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:16:11,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:16:11,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:16:11,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029049189] [2022-12-14 13:16:11,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:16:11,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:16:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:16:11,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:16:11,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:16:11,491 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:16:11,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:16:11,534 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 13:16:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:16:11,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-12-14 13:16:11,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:16:11,544 INFO L225 Difference]: With dead ends: 21 [2022-12-14 13:16:11,544 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 13:16:11,547 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 [2022-12-14 13:16:11,549 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:16:11,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:16:11,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 13:16:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 13:16:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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 13:16:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 13:16:11,577 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 13:16:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:16:11,578 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 13:16:11,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 13:16:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 13:16:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:16:11,579 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:16:11,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:16:11,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:16:11,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:16:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:16:11,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1767536626, now seen corresponding path program 1 times [2022-12-14 13:16:11,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:16:11,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349304327] [2022-12-14 13:16:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:11,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:16:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:16:11,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:16:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:16:11,629 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:16:11,629 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:16:11,630 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:16:11,631 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:16:11,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:16:11,635 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:16:11,637 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:16:11,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:16:11 BoogieIcfgContainer [2022-12-14 13:16:11,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:16:11,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:16:11,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:16:11,654 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:16:11,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:11" (3/4) ... [2022-12-14 13:16:11,656 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:16:11,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:16:11,657 INFO L158 Benchmark]: Toolchain (without parser) took 1962.35ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 101.4MB in the beginning and 105.5MB in the end (delta: -4.1MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,658 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:16:11,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 955.08ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 101.4MB in the beginning and 159.1MB in the end (delta: -57.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.52ms. Allocated memory is still 209.7MB. Free memory was 159.1MB in the beginning and 155.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,659 INFO L158 Benchmark]: Boogie Preprocessor took 23.51ms. Allocated memory is still 209.7MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,659 INFO L158 Benchmark]: RCFGBuilder took 358.27ms. Allocated memory is still 209.7MB. Free memory was 153.7MB in the beginning and 139.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,660 INFO L158 Benchmark]: TraceAbstraction took 578.69ms. Allocated memory is still 209.7MB. Free memory was 139.1MB in the beginning and 105.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 13:16:11,660 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 209.7MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:16:11,662 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 146.8MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 955.08ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 101.4MB in the beginning and 159.1MB in the end (delta: -57.7MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.52ms. Allocated memory is still 209.7MB. Free memory was 159.1MB in the beginning and 155.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.51ms. Allocated memory is still 209.7MB. Free memory was 155.8MB in the beginning and 153.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.27ms. Allocated memory is still 209.7MB. Free memory was 153.7MB in the beginning and 139.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 578.69ms. Allocated memory is still 209.7MB. Free memory was 139.1MB in the beginning and 105.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 209.7MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_52c_badSink(data) [L1581] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 13:16:11,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb --- 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 13:16:13,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:16:13,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:16:13,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:16:13,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:16:13,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:16:13,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:16:13,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:16:13,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:16:13,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:16:13,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:16:13,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:16:13,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:16:13,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:16:13,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:16:13,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:16:13,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:16:13,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:16:13,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:16:13,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:16:13,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:16:13,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:16:13,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:16:13,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:16:13,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:16:13,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:16:13,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:16:13,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:16:13,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:16:13,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:16:13,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:16:13,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:16:13,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:16:13,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:16:13,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:16:13,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:16:13,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:16:13,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:16:13,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:16:13,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:16:13,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:16:13,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:16:13,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:16:13,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:16:13,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:16:13,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:16:13,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:16:13,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:16:13,651 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:16:13,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:16:13,652 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:16:13,652 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:16:13,652 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:16:13,652 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:16:13,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:16:13,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:16:13,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:16:13,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:16:13,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:16:13,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:16:13,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:16:13,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:16:13,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:16:13,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:16:13,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:13,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:16:13,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:16:13,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:16:13,657 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_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d26319dc8ca473618b013abe735255f59d6514fb3c3118bb57512acd3d6a6fb [2022-12-14 13:16:13,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:16:13,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:16:13,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:16:13,928 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:16:13,928 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:16:13,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:16,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:16:16,811 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:16:16,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:16,826 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/011114bcf/1ad85d24b685454abb44b8f0160af13d/FLAGbb0fd40aa [2022-12-14 13:16:16,838 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/data/011114bcf/1ad85d24b685454abb44b8f0160af13d [2022-12-14 13:16:16,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:16:16,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:16:16,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:16,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:16:16,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:16:16,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:16" (1/1) ... [2022-12-14 13:16:16,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5389640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:16, skipping insertion in model container [2022-12-14 13:16:16,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:16:16" (1/1) ... [2022-12-14 13:16:16,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:16:16,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:16:17,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:16:17,450 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:16:17,454 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:17,455 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:17,457 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:17,457 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:17,471 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:16:17,473 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:16:17,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:17,487 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:16:17,501 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:16:17,534 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:16:17,535 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:17,536 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:16:17,537 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:17,538 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:16:17,541 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:16:17,542 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:16:17,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:16:17,655 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:16:17,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17 WrapperNode [2022-12-14 13:16:17,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:16:17,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:17,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:16:17,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:16:17,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,705 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55 [2022-12-14 13:16:17,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:16:17,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:16:17,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:16:17,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:16:17,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,725 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:16:17,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:16:17,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:16:17,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:16:17,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (1/1) ... [2022-12-14 13:16:17,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:16:17,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:16:17,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:16:17,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:16:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:16:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:16:17,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:16:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:16:17,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:16:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:16:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:16:17,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:16:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:16:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:16:17,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 13:16:17,936 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:16:17,938 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:16:18,067 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:16:18,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:16:18,074 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:16:18,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:18 BoogieIcfgContainer [2022-12-14 13:16:18,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:16:18,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:16:18,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:16:18,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:16:18,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:16:16" (1/3) ... [2022-12-14 13:16:18,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd44f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:16:18, skipping insertion in model container [2022-12-14 13:16:18,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:16:17" (2/3) ... [2022-12-14 13:16:18,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd44f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:16:18, skipping insertion in model container [2022-12-14 13:16:18,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:18" (3/3) ... [2022-12-14 13:16:18,086 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_52_bad.i [2022-12-14 13:16:18,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:16:18,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:16:18,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:16:18,139 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;@53e2aebf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:16:18,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:16:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 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 13:16:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:16:18,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:16:18,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:16:18,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:16:18,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:16:18,154 INFO L85 PathProgramCache]: Analyzing trace with hash -83245182, now seen corresponding path program 1 times [2022-12-14 13:16:18,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:16:18,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536328209] [2022-12-14 13:16:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:18,164 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 13:16:18,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:16:18,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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 13:16:18,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:16:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:16:18,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:16:18,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:16:18,327 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 13:16:18,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:16:18,328 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:16:18,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536328209] [2022-12-14 13:16:18,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536328209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:16:18,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:16:18,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:16:18,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803195549] [2022-12-14 13:16:18,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:16:18,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:16:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:16:18,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:16:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:16:18,359 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 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 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 13:16:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:16:18,387 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-12-14 13:16:18,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:16:18,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-14 13:16:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:16:18,394 INFO L225 Difference]: With dead ends: 33 [2022-12-14 13:16:18,394 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 13:16:18,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:16:18,399 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:16:18,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:16:18,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 13:16:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 13:16:18,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 13:16:18,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 13:16:18,427 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-14 13:16:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:16:18,428 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 13:16:18,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 13:16:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 13:16:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:16:18,429 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:16:18,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:16:18,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:16:18,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:16:18,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:16:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:16:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1714366711, now seen corresponding path program 1 times [2022-12-14 13:16:18,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:16:18,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493205479] [2022-12-14 13:16:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:16:18,633 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 13:16:18,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:16:18,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/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 13:16:18,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:16:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:16:18,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:16:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:16:18,786 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 13:16:18,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:16:18,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:16:18,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:16:18,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:16:18,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:16:18,997 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:16:19,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:16:19,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:16:19 BoogieIcfgContainer [2022-12-14 13:16:19,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:16:19,069 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:16:19,069 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:16:19,070 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:16:19,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:16:18" (3/4) ... [2022-12-14 13:16:19,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:16:19,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:16:19,082 INFO L158 Benchmark]: Toolchain (without parser) took 2239.97ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 49.5MB in the end (delta: -3.6MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,084 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:16:19,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.07ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.7MB in the beginning and 54.1MB in the end (delta: -8.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 86.0MB. Free memory was 54.1MB in the beginning and 51.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,088 INFO L158 Benchmark]: Boogie Preprocessor took 22.98ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,089 INFO L158 Benchmark]: RCFGBuilder took 350.52ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 58.4MB in the end (delta: -9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,090 INFO L158 Benchmark]: TraceAbstraction took 986.70ms. Allocated memory is still 86.0MB. Free memory was 57.9MB in the beginning and 49.5MB in the end (delta: 8.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-12-14 13:16:19,091 INFO L158 Benchmark]: Witness Printer took 10.92ms. Allocated memory is still 86.0MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:16:19,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 49.7MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.07ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.7MB in the beginning and 54.1MB in the end (delta: -8.4MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 86.0MB. Free memory was 54.1MB in the beginning and 51.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.98ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.52ms. Allocated memory is still 86.0MB. Free memory was 49.1MB in the beginning and 58.4MB in the end (delta: -9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 986.70ms. Allocated memory is still 86.0MB. Free memory was 57.9MB in the beginning and 49.5MB in the end (delta: 8.4MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Witness Printer took 10.92ms. Allocated memory is still 86.0MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_multiply_52c_badSink(data) [L1581] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 2 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 13:16:19,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_540dd3e6-575e-4ed9-b3f2-10690bc28a89/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample