./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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_57687b8e-7ae7-48d0-b995-5db77b805670/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 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f --- 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 14:27:37,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:27:37,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:27:37,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:27:37,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:27:37,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:27:37,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:27:37,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:27:37,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:27:37,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:27:37,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:27:37,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:27:37,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:27:37,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:27:37,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:27:37,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:27:37,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:27:37,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:27:37,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:27:37,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:27:37,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:27:37,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:27:37,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:27:37,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:27:37,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:27:37,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:27:37,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:27:37,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:27:37,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:27:37,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:27:37,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:27:37,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:27:37,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:27:37,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:27:37,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:27:37,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:27:37,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:27:37,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:27:37,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:27:37,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:27:37,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:27:37,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 14:27:37,364 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:27:37,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:27:37,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:27:37,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:27:37,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:27:37,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:27:37,366 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:27:37,366 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:27:37,367 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:27:37,367 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:27:37,367 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:27:37,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:27:37,367 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:27:37,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:27:37,368 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:27:37,368 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:27:37,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:27:37,368 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:27:37,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:27:37,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:27:37,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:27:37,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:27:37,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:27:37,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:27:37,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:27:37,370 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:27:37,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:27:37,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:27:37,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:27:37,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:27:37,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:27:37,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:27:37,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:27:37,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:27:37,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:27:37,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:27:37,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:27:37,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:27:37,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:27:37,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:27:37,373 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_57687b8e-7ae7-48d0-b995-5db77b805670/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f [2022-12-14 14:27:37,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:27:37,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:27:37,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:27:37,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:27:37,613 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:27:37,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:40,190 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:27:40,469 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:27:40,469 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:40,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/1f4ddc615/72f43c1b25884864aace901df44c1483/FLAG9dead455e [2022-12-14 14:27:40,739 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/1f4ddc615/72f43c1b25884864aace901df44c1483 [2022-12-14 14:27:40,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:27:40,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:27:40,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:27:40,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:27:40,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:27:40,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:27:40" (1/1) ... [2022-12-14 14:27:40,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e61a455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:40, skipping insertion in model container [2022-12-14 14:27:40,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:27:40" (1/1) ... [2022-12-14 14:27:40,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:27:40,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:27:41,095 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:27:41,428 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:27:41,432 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:41,434 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:41,435 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:41,436 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:41,459 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:27:41,462 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:27:41,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:27:41,475 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:27:41,491 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:27:41,535 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:27:41,536 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:41,537 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:41,539 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:41,540 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:41,544 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:27:41,545 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:27:41,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:27:41,675 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:27:41,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41 WrapperNode [2022-12-14 14:27:41,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:27:41,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:27:41,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:27:41,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:27:41,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,713 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-12-14 14:27:41,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:27:41,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:27:41,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:27:41,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:27:41,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:27:41,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:27:41,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:27:41,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:27:41,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (1/1) ... [2022-12-14 14:27:41,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:27:41,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:27:41,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:27:41,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:27:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 14:27:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:27:41,802 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:27:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:27:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:27:41,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:27:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:27:41,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:27:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:27:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:27:41,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:27:41,921 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:27:41,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:27:42,025 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:27:42,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:27:42,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:27:42,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:42 BoogieIcfgContainer [2022-12-14 14:27:42,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:27:42,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:27:42,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:27:42,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:27:42,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:27:40" (1/3) ... [2022-12-14 14:27:42,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f073901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:27:42, skipping insertion in model container [2022-12-14 14:27:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:41" (2/3) ... [2022-12-14 14:27:42,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f073901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:27:42, skipping insertion in model container [2022-12-14 14:27:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:42" (3/3) ... [2022-12-14 14:27:42,057 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:42,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:27:42,071 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:27:42,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:27:42,109 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;@5c840621, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:27:42,109 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:27:42,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 14:27:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:27:42,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:42,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:42,118 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:27:42,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1162199373, now seen corresponding path program 1 times [2022-12-14 14:27:42,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:27:42,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789031662] [2022-12-14 14:27:42,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:42,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:27:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:27:42,415 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 14:27:42,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:27:42,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789031662] [2022-12-14 14:27:42,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789031662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:42,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:27:42,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:27:42,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799759049] [2022-12-14 14:27:42,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:42,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:27:42,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:27:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:27:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:27:42,455 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:27:42,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:42,506 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 14:27:42,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:27:42,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 14:27:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:42,515 INFO L225 Difference]: With dead ends: 15 [2022-12-14 14:27:42,515 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:27:42,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:27:42,521 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:42,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:27:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:27:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 14:27:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 14:27:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 14:27:42,556 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 14:27:42,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:27:42,557 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 14:27:42,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:27:42,557 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 14:27:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:27:42,558 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:42,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:42,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:27:42,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:27:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1668442249, now seen corresponding path program 1 times [2022-12-14 14:27:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:27:42,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310673026] [2022-12-14 14:27:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:42,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:27:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:27:42,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:27:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:27:42,619 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:27:42,620 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:27:42,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:27:42,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:27:42,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:27:42,627 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 14:27:42,631 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:27:42,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:27:42 BoogieIcfgContainer [2022-12-14 14:27:42,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:27:42,651 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:27:42,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:27:42,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:27:42,652 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:42" (3/4) ... [2022-12-14 14:27:42,655 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:27:42,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:27:42,656 INFO L158 Benchmark]: Toolchain (without parser) took 1913.15ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 96.8MB in the beginning and 113.1MB in the end (delta: -16.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,656 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:27:42,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.98ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 96.6MB in the beginning and 113.5MB in the end (delta: -16.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,657 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.97ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,657 INFO L158 Benchmark]: Boogie Preprocessor took 23.61ms. Allocated memory is still 159.4MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,658 INFO L158 Benchmark]: RCFGBuilder took 312.48ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 94.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,658 INFO L158 Benchmark]: TraceAbstraction took 597.89ms. Allocated memory is still 159.4MB. Free memory was 93.6MB in the beginning and 114.1MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:27:42,659 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:42,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.98ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 96.6MB in the beginning and 113.5MB in the end (delta: -16.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.97ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 111.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.61ms. Allocated memory is still 159.4MB. Free memory was 111.4MB in the beginning and 109.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 312.48ms. Allocated memory is still 159.4MB. Free memory was 109.3MB in the beginning and 94.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 597.89ms. Allocated memory is still 159.4MB. Free memory was 93.6MB in the beginning and 114.1MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1582]: 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)=2147483649, argc=2147483649, argv={2147483652:2147483650}, argv={2147483652:2147483650}, 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_preinc_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_preinc_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_52c_badSink(data) [L1582] ++data VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 14:27:42,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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_57687b8e-7ae7-48d0-b995-5db77b805670/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 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f --- 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 14:27:44,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:27:44,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:27:44,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:27:44,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:27:44,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:27:44,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:27:44,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:27:44,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:27:44,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:27:44,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:27:44,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:27:44,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:27:44,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:27:44,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:27:44,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:27:44,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:27:44,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:27:44,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:27:44,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:27:44,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:27:44,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:27:44,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:27:44,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:27:44,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:27:44,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:27:44,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:27:44,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:27:44,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:27:44,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:27:44,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:27:44,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:27:44,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:27:44,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:27:44,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:27:44,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:27:44,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:27:44,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:27:44,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:27:44,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:27:44,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:27:44,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 14:27:44,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:27:44,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:27:44,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:27:44,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:27:44,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:27:44,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:27:44,272 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:27:44,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:27:44,272 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:27:44,273 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:27:44,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:27:44,273 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:27:44,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:27:44,274 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:27:44,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:27:44,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:27:44,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:27:44,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:27:44,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:27:44,275 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:27:44,275 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:27:44,275 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:27:44,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:27:44,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:27:44,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:27:44,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:27:44,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:27:44,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:27:44,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:27:44,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:27:44,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:27:44,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:27:44,278 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:27:44,278 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:27:44,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:27:44,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:27:44,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:27:44,278 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_57687b8e-7ae7-48d0-b995-5db77b805670/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f [2022-12-14 14:27:44,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:27:44,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:27:44,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:27:44,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:27:44,550 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:27:44,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:47,111 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:27:47,324 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:27:47,324 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:47,335 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/54128df0b/6eae6f5dc08a4955a22796b43cf469a7/FLAGd889e2c4b [2022-12-14 14:27:47,688 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/data/54128df0b/6eae6f5dc08a4955a22796b43cf469a7 [2022-12-14 14:27:47,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:27:47,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:27:47,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:27:47,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:27:47,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:27:47,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:27:47" (1/1) ... [2022-12-14 14:27:47,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211f96b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:47, skipping insertion in model container [2022-12-14 14:27:47,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:27:47" (1/1) ... [2022-12-14 14:27:47,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:27:47,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:27:48,019 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:27:48,372 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:27:48,376 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:48,377 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:48,380 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:48,380 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:48,397 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:27:48,400 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:27:48,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:27:48,421 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:27:48,444 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:27:48,490 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:27:48,491 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:48,492 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:27:48,494 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:48,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:27:48,499 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 14:27:48,500 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:27:48,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:27:48,609 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:27:48,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48 WrapperNode [2022-12-14 14:27:48,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:27:48,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:27:48,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:27:48,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:27:48,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,654 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-12-14 14:27:48,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:27:48,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:27:48,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:27:48,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:27:48,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:27:48,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:27:48,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:27:48,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:27:48,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (1/1) ... [2022-12-14 14:27:48,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:27:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:27:48,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:27:48,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:27:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 14:27:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:27:48,738 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:27:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:27:48,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:27:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 14:27:48,869 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:27:48,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:27:48,992 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:27:48,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:27:48,997 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:27:48,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:48 BoogieIcfgContainer [2022-12-14 14:27:48,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:27:49,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:27:49,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:27:49,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:27:49,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:27:47" (1/3) ... [2022-12-14 14:27:49,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39211da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:27:49, skipping insertion in model container [2022-12-14 14:27:49,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:27:48" (2/3) ... [2022-12-14 14:27:49,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39211da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:27:49, skipping insertion in model container [2022-12-14 14:27:49,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:48" (3/3) ... [2022-12-14 14:27:49,006 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-14 14:27:49,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:27:49,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:27:49,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:27:49,067 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;@2f3eb49f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:27:49,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:27:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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 14:27:49,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:27:49,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:49,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:49,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:27:49,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-14 14:27:49,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:27:49,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388636466] [2022-12-14 14:27:49,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:49,097 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 14:27:49,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:27:49,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:27:49,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 14:27:49,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:27:49,241 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 14:27:49,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:27:49,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:27:49,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388636466] [2022-12-14 14:27:49,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388636466] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:27:49,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:27:49,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:27:49,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391073804] [2022-12-14 14:27:49,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:27:49,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:27:49,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:27:49,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:27:49,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:27:49,269 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:27:49,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:27:49,281 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-14 14:27:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:27:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 14:27:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:27:49,287 INFO L225 Difference]: With dead ends: 24 [2022-12-14 14:27:49,287 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:27:49,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:27:49,291 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:27:49,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:27:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:27:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 14:27:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 14:27:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 14:27:49,319 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 14:27:49,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:27:49,320 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 14:27:49,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 14:27:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 14:27:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:27:49,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:27:49,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:27:49,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:27:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:27:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-14 14:27:49,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:27:49,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137285702] [2022-12-14 14:27:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:27:49,529 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 14:27:49,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:27:49,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:27:49,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:27:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:27:49,701 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 14:27:49,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:27:49,703 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:27:49,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:27:49,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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 14:27:49,916 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 14:27:49,926 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:27:49,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:27:49 BoogieIcfgContainer [2022-12-14 14:27:49,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:27:49,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:27:49,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:27:49,990 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:27:49,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:27:48" (3/4) ... [2022-12-14 14:27:49,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:27:49,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:27:50,000 INFO L158 Benchmark]: Toolchain (without parser) took 2306.56ms. Allocated memory is still 90.2MB. Free memory was 69.8MB in the beginning and 59.1MB in the end (delta: 10.7MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,001 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:27:50,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 915.33ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 48.8MB in the end (delta: 20.7MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 45.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,003 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 43.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,004 INFO L158 Benchmark]: RCFGBuilder took 318.76ms. Allocated memory is still 90.2MB. Free memory was 43.5MB in the beginning and 55.1MB in the end (delta: -11.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,005 INFO L158 Benchmark]: TraceAbstraction took 987.40ms. Allocated memory is still 90.2MB. Free memory was 54.2MB in the beginning and 59.6MB in the end (delta: -5.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-12-14 14:27:50,005 INFO L158 Benchmark]: Witness Printer took 9.48ms. Allocated memory is still 90.2MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:27:50,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 915.33ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 48.8MB in the end (delta: 20.7MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 45.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 90.2MB. Free memory was 45.5MB in the beginning and 43.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.76ms. Allocated memory is still 90.2MB. Free memory was 43.5MB in the beginning and 55.1MB in the end (delta: -11.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 987.40ms. Allocated memory is still 90.2MB. Free memory was 54.2MB in the beginning and 59.6MB in the end (delta: -5.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 9.48ms. Allocated memory is still 90.2MB. Free memory is still 59.1MB. 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: 1582]: 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_preinc_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_preinc_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_52c_badSink(data) [L1582] ++data VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 14:27:50,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57687b8e-7ae7-48d0-b995-5db77b805670/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