./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 b802c8c91238b875de4a044a2d67a4a44fe7f614f27ebe159cae1b1595b93dd0 --- 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 07:08:06,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:08:06,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:08:06,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:08:06,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:08:06,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:08:06,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:08:06,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:08:06,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:08:06,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:08:06,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:08:06,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:08:06,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:08:06,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:08:06,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:08:06,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:08:06,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:08:06,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:08:06,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:08:06,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:08:06,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:08:06,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:08:06,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:08:06,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:08:06,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:08:06,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:08:06,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:08:06,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:08:06,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:08:06,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:08:06,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:08:06,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:08:06,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:08:06,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:08:06,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:08:06,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:08:06,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:08:06,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:08:06,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:08:06,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:08:06,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:08:06,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 07:08:06,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:08:06,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:08:06,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:08:06,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:08:06,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:08:06,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:08:06,698 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:08:06,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:08:06,698 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:08:06,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:08:06,699 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:08:06,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:08:06,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:08:06,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:08:06,699 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:08:06,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:08:06,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:08:06,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:08:06,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:08:06,701 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:08:06,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:08:06,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:08:06,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:08:06,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:08:06,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:08:06,702 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:08:06,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:08:06,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:08:06,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:08:06,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:08:06,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:08:06,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:06,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:08:06,704 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:08:06,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:08:06,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:08:06,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:08:06,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:08:06,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:08:06,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:08:06,705 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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b802c8c91238b875de4a044a2d67a4a44fe7f614f27ebe159cae1b1595b93dd0 [2022-12-14 07:08:06,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:08:06,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:08:06,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:08:06,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:08:06,920 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:08:06,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:09,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:08:09,697 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:08:09,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:09,710 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/33be11c44/b0b3fcc3c52546048e23e2fd59a599b6/FLAGe6e2aa98b [2022-12-14 07:08:10,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/33be11c44/b0b3fcc3c52546048e23e2fd59a599b6 [2022-12-14 07:08:10,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:08:10,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:08:10,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:10,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:08:10,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:08:10,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cff5bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10, skipping insertion in model container [2022-12-14 07:08:10,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:08:10,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:08:10,353 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:08:10,679 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:08:10,684 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:10,687 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:10,689 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:10,690 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:10,708 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:08:10,711 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:08:10,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:10,725 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:08:10,739 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:08:10,769 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:08:10,770 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:10,771 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:10,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:10,774 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:10,777 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:08:10,778 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:08:10,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:10,883 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:08:10,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10 WrapperNode [2022-12-14 07:08:10,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:10,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:10,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:08:10,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:08:10,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,933 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-14 07:08:10,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:10,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:08:10,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:08:10,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:08:10,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:08:10,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:08:10,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:08:10,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:08:10,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (1/1) ... [2022-12-14 07:08:10,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:10,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:08:10,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:08:10,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:08:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:08:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:08:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:08:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:08:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:08:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:08:11,129 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:08:11,131 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:08:11,216 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:08:11,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:08:11,242 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:08:11,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:11 BoogieIcfgContainer [2022-12-14 07:08:11,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:08:11,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:08:11,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:08:11,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:08:11,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:08:10" (1/3) ... [2022-12-14 07:08:11,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fe14c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:11, skipping insertion in model container [2022-12-14 07:08:11,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:10" (2/3) ... [2022-12-14 07:08:11,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8fe14c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:11, skipping insertion in model container [2022-12-14 07:08:11,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:11" (3/3) ... [2022-12-14 07:08:11,253 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:11,268 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:08:11,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:08:11,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:08:11,305 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;@1e11b83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:08:11,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:08:11,308 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 07:08:11,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:08:11,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:11,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:11,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:08:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash 108804142, now seen corresponding path program 1 times [2022-12-14 07:08:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:11,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671599511] [2022-12-14 07:08:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:11,561 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 07:08:11,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:08:11,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671599511] [2022-12-14 07:08:11,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671599511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:11,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:11,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:08:11,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737843776] [2022-12-14 07:08:11,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:11,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:08:11,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:08:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:08:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:08:11,590 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 07:08:11,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:11,629 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 07:08:11,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:08:11,631 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 07:08:11,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:11,636 INFO L225 Difference]: With dead ends: 15 [2022-12-14 07:08:11,636 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 07:08:11,637 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 07:08:11,640 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:08:11,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:08:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 07:08:11,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 07:08:11,663 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 07:08:11,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 07:08:11,665 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 07:08:11,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:11,666 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 07:08:11,666 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 07:08:11,666 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 07:08:11,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:08:11,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:11,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:11,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:08:11,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:08:11,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash -922038840, now seen corresponding path program 1 times [2022-12-14 07:08:11,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:08:11,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055484771] [2022-12-14 07:08:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:11,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:08:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:08:11,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:08:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:08:11,731 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 07:08:11,731 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:08:11,732 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:08:11,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:08:11,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:08:11,737 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 07:08:11,739 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:08:11,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:08:11 BoogieIcfgContainer [2022-12-14 07:08:11,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:08:11,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:08:11,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:08:11,759 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:08:11,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:11" (3/4) ... [2022-12-14 07:08:11,762 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:08:11,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:08:11,762 INFO L158 Benchmark]: Toolchain (without parser) took 1723.88ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.4MB in the beginning and 121.7MB in the end (delta: -15.2MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-12-14 07:08:11,762 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:11,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.75ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.4MB in the beginning and 120.5MB in the end (delta: -14.2MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2022-12-14 07:08:11,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 174.1MB. Free memory was 120.5MB in the beginning and 117.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:08:11,764 INFO L158 Benchmark]: Boogie Preprocessor took 21.92ms. Allocated memory is still 174.1MB. Free memory was 117.6MB in the beginning and 116.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:08:11,764 INFO L158 Benchmark]: RCFGBuilder took 288.06ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 101.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 07:08:11,764 INFO L158 Benchmark]: TraceAbstraction took 511.26ms. Allocated memory is still 174.1MB. Free memory was 100.8MB in the beginning and 121.7MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:11,765 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 174.1MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:11,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.75ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.4MB in the beginning and 120.5MB in the end (delta: -14.2MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 174.1MB. Free memory was 120.5MB in the beginning and 117.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.92ms. Allocated memory is still 174.1MB. Free memory was 117.6MB in the beginning and 116.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.06ms. Allocated memory is still 174.1MB. Free memory was 116.4MB in the beginning and 101.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 511.26ms. Allocated memory is still 174.1MB. Free memory was 100.8MB in the beginning and 121.7MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 174.1MB. Free memory is still 121.7MB. 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1573] 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) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_postinc_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_postinc_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_postinc_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_postinc_68_badData; [L1585] data++ VAL [CWE190_Integer_Overflow__int_fgets_postinc_68_badData=2147483647, 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: 1585]: 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: 0.4s, 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, 8 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 13 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, 0.1s 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 07:08:11,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 b802c8c91238b875de4a044a2d67a4a44fe7f614f27ebe159cae1b1595b93dd0 --- 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 07:08:13,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:08:13,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:08:13,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:08:13,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:08:13,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:08:13,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:08:13,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:08:13,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:08:13,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:08:13,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:08:13,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:08:13,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:08:13,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:08:13,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:08:13,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:08:13,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:08:13,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:08:13,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:08:13,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:08:13,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:08:13,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:08:13,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:08:13,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:08:13,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:08:13,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:08:13,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:08:13,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:08:13,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:08:13,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:08:13,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:08:13,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:08:13,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:08:13,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:08:13,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:08:13,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:08:13,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:08:13,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:08:13,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:08:13,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:08:13,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:08:13,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 07:08:13,543 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:08:13,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:08:13,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:08:13,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:08:13,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:08:13,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:08:13,544 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:08:13,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:08:13,545 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:08:13,545 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:08:13,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:08:13,545 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:08:13,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:08:13,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:08:13,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:08:13,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:08:13,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:08:13,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:08:13,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:08:13,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:13,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:08:13,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:08:13,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 07:08:13,549 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_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b802c8c91238b875de4a044a2d67a4a44fe7f614f27ebe159cae1b1595b93dd0 [2022-12-14 07:08:13,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:08:13,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:08:13,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:08:13,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:08:13,796 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:08:13,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:16,406 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:08:16,626 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:08:16,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:16,640 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/c00e46950/d103f282e15546aea7f6809f664d6793/FLAG195ceb7da [2022-12-14 07:08:16,650 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/data/c00e46950/d103f282e15546aea7f6809f664d6793 [2022-12-14 07:08:16,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:08:16,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:08:16,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:16,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:08:16,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:08:16,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:16" (1/1) ... [2022-12-14 07:08:16,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564d81c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:16, skipping insertion in model container [2022-12-14 07:08:16,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:08:16" (1/1) ... [2022-12-14 07:08:16,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:08:16,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:08:16,924 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:08:17,227 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:08:17,232 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:17,233 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:17,235 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:17,236 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:17,254 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:08:17,256 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:08:17,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:17,273 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:08:17,292 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 07:08:17,343 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 07:08:17,345 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:17,346 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 07:08:17,348 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:17,349 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 07:08:17,353 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 07:08:17,355 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 07:08:17,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:08:17,446 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:08:17,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17 WrapperNode [2022-12-14 07:08:17,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:08:17,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:17,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:08:17,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:08:17,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,496 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-14 07:08:17,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:08:17,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:08:17,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:08:17,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:08:17,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:08:17,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:08:17,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:08:17,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:08:17,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (1/1) ... [2022-12-14 07:08:17,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:08:17,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:08:17,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:08:17,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:08:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 07:08:17,581 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 07:08:17,581 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:08:17,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 07:08:17,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 07:08:17,699 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:08:17,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:08:17,821 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:08:17,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:08:17,826 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:08:17,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:17 BoogieIcfgContainer [2022-12-14 07:08:17,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:08:17,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:08:17,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:08:17,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:08:17,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:08:16" (1/3) ... [2022-12-14 07:08:17,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b7fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:17, skipping insertion in model container [2022-12-14 07:08:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:08:17" (2/3) ... [2022-12-14 07:08:17,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40b7fc17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:08:17, skipping insertion in model container [2022-12-14 07:08:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:17" (3/3) ... [2022-12-14 07:08:17,833 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_68_bad.i [2022-12-14 07:08:17,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:08:17,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 07:08:17,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:08:17,887 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;@57918d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:08:17,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 07:08:17,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 07:08:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:08:17,897 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:17,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:17,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:08:17,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 07:08:17,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:08:17,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249017025] [2022-12-14 07:08:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:17,915 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 07:08:17,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:08:17,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:17,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:08:18,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 07:08:18,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:08:18,065 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 07:08:18,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:08:18,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 07:08:18,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249017025] [2022-12-14 07:08:18,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249017025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:08:18,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:08:18,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:08:18,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524240079] [2022-12-14 07:08:18,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:08:18,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:08:18,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 07:08:18,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:08:18,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:08:18,096 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 07:08:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:08:18,109 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 07:08:18,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:08:18,111 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 07:08:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:08:18,116 INFO L225 Difference]: With dead ends: 23 [2022-12-14 07:08:18,116 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 07:08:18,118 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 07:08:18,120 INFO L413 NwaCegarLoop]: 25 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, 25 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 07:08:18,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:08:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 07:08:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 07:08:18,143 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 07:08:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 07:08:18,149 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 07:08:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:08:18,150 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 07:08:18,151 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 07:08:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 07:08:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:08:18,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:08:18,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:08:18,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 07:08:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:08:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 07:08:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 07:08:18,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801858652] [2022-12-14 07:08:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:08:18,354 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 07:08:18,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 07:08:18,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:08:18,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 07:08:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 07:08:18,486 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 07:08:18,486 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 07:08:18,487 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 07:08:18,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 07:08:18,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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 07:08:18,703 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 07:08:18,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:08:18,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:08:18 BoogieIcfgContainer [2022-12-14 07:08:18,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:08:18,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:08:18,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:08:18,773 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:08:18,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:08:17" (3/4) ... [2022-12-14 07:08:18,776 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 07:08:18,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:08:18,777 INFO L158 Benchmark]: Toolchain (without parser) took 2123.22ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.8MB in the beginning and 60.6MB in the end (delta: -3.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-14 07:08:18,777 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:18,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.21ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.5MB in the beginning and 49.0MB in the end (delta: 7.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-14 07:08:18,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.81ms. Allocated memory is still 98.6MB. Free memory was 49.0MB in the beginning and 45.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 07:08:18,779 INFO L158 Benchmark]: Boogie Preprocessor took 27.58ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:08:18,779 INFO L158 Benchmark]: RCFGBuilder took 301.98ms. Allocated memory is still 98.6MB. Free memory was 43.7MB in the beginning and 61.2MB in the end (delta: -17.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-12-14 07:08:18,780 INFO L158 Benchmark]: TraceAbstraction took 943.07ms. Allocated memory is still 98.6MB. Free memory was 60.2MB in the beginning and 60.6MB in the end (delta: -416.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:18,780 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 98.6MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:08:18,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.21ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.5MB in the beginning and 49.0MB in the end (delta: 7.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.81ms. Allocated memory is still 98.6MB. Free memory was 49.0MB in the beginning and 45.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.58ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.98ms. Allocated memory is still 98.6MB. Free memory was 43.7MB in the beginning and 61.2MB in the end (delta: -17.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * TraceAbstraction took 943.07ms. Allocated memory is still 98.6MB. Free memory was 60.2MB in the beginning and 60.6MB in the end (delta: -416.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 98.6MB. Free memory is still 60.6MB. 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1550] int CWE190_Integer_Overflow__int_fgets_postinc_68_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_postinc_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_postinc_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_postinc_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_postinc_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_postinc_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_postinc_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_postinc_68_badData; [L1585] data++ VAL [CWE190_Integer_Overflow__int_fgets_postinc_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_postinc_68_goodB2GData=0, 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: 1585]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 25 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, 25 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=23occurred 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 07:08:18,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae7d9e86-b929-4867-82b9-4b86ffaecb8f/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