./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 30978c2db0483c54c6d2f4356e79f0aec9e4ab2e170135de47b1918c9a4b19f8 --- 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 03:06:07,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:06:07,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:06:07,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:06:07,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:06:07,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:06:07,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:06:07,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:06:07,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:06:07,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:06:07,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:06:07,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:06:07,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:06:07,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:06:07,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:06:07,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:06:07,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:06:07,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:06:07,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:06:07,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:06:07,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:06:07,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:06:07,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:06:07,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:06:07,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:06:07,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:06:07,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:06:07,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:06:07,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:06:07,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:06:07,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:06:07,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:06:07,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:06:07,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:06:07,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:06:07,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:06:07,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:06:07,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:06:07,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:06:07,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:06:07,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:06:07,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 03:06:07,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:06:07,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:06:07,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:06:07,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:06:07,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:06:07,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:06:07,717 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:06:07,717 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:06:07,723 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:06:07,723 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:06:07,723 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:06:07,723 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:06:07,724 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:06:07,724 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:06:07,724 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:06:07,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:06:07,725 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:06:07,725 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:06:07,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:06:07,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:06:07,726 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 03:06:07,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:06:07,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:06:07,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:06:07,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:06:07,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:06:07,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:06:07,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:06:07,728 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:06:07,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:06:07,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:06:07,728 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:06:07,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:06:07,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:06:07,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:06:07,729 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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30978c2db0483c54c6d2f4356e79f0aec9e4ab2e170135de47b1918c9a4b19f8 [2022-12-14 03:06:07,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:06:07,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:06:07,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:06:07,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:06:07,917 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:06:07,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:10,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:06:10,675 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:06:10,676 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:10,691 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/9882a6e2f/c5edf0e764d44b979640c3d1b2b7c865/FLAG368dbcae6 [2022-12-14 03:06:10,702 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/9882a6e2f/c5edf0e764d44b979640c3d1b2b7c865 [2022-12-14 03:06:10,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:06:10,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:06:10,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:06:10,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:06:10,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:06:10,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:10" (1/1) ... [2022-12-14 03:06:10,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29293b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:10, skipping insertion in model container [2022-12-14 03:06:10,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:10" (1/1) ... [2022-12-14 03:06:10,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:06:10,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:06:11,053 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:06:11,429 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:06:11,433 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:11,434 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:11,436 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:11,436 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:11,784 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:06:11,788 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:06:11,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:06:11,797 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:06:11,810 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:06:11,839 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:06:11,840 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:11,841 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:11,843 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:11,843 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:11,852 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:06:11,853 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:06:11,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:06:12,110 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:06:12,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12 WrapperNode [2022-12-14 03:06:12,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:06:12,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:06:12,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:06:12,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:06:12,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,164 INFO L138 Inliner]: procedures = 938, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-14 03:06:12,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:06:12,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:06:12,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:06:12,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:06:12,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,185 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:06:12,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:06:12,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:06:12,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:06:12,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (1/1) ... [2022-12-14 03:06:12,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:06:12,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:06:12,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:06:12,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:06:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 03:06:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 03:06:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 03:06:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 03:06:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 03:06:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:06:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 03:06:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:06:12,364 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:06:12,366 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:06:12,474 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:06:12,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:06:12,501 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:06:12,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:12 BoogieIcfgContainer [2022-12-14 03:06:12,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:06:12,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:06:12,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:06:12,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:06:12,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:10" (1/3) ... [2022-12-14 03:06:12,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff2270d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:12, skipping insertion in model container [2022-12-14 03:06:12,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:12" (2/3) ... [2022-12-14 03:06:12,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff2270d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:12, skipping insertion in model container [2022-12-14 03:06:12,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:12" (3/3) ... [2022-12-14 03:06:12,511 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:12,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:06:12,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 03:06:12,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:06:12,573 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;@41e4e665, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:06:12,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 03:06:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 03:06:12,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 03:06:12,582 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:06:12,583 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:06:12,583 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:06:12,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:06:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1615715740, now seen corresponding path program 1 times [2022-12-14 03:06:12,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:06:12,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920933734] [2022-12-14 03:06:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:12,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:06:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:06:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 03:06:12,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:06:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920933734] [2022-12-14 03:06:12,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920933734] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 03:06:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910088415] [2022-12-14 03:06:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:12,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:06:12,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:06:12,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:06:12,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 03:06:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:06:12,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 03:06:12,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:06:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 03:06:12,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:06:12,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910088415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:06:12,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 03:06:12,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 4 [2022-12-14 03:06:12,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076888359] [2022-12-14 03:06:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:06:12,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:06:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:06:12,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:06:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:12,927 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 03:06:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:06:12,948 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-12-14 03:06:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:06:12,950 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-12-14 03:06:12,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:06:12,955 INFO L225 Difference]: With dead ends: 24 [2022-12-14 03:06:12,955 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 03:06:12,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:12,959 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:06:12,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:06:12,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 03:06:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 03:06:12,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 03:06:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-12-14 03:06:12,987 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 16 [2022-12-14 03:06:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:06:12,989 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-12-14 03:06:12,989 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 03:06:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 03:06:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 03:06:12,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:06:12,990 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:06:12,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 03:06:13,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 03:06:13,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:06:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:06:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1452419545, now seen corresponding path program 1 times [2022-12-14 03:06:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:06:13,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533859482] [2022-12-14 03:06:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:06:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:06:13,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:06:13,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533859482] [2022-12-14 03:06:13,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 03:06:13,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495832463] [2022-12-14 03:06:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:13,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:06:13,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:06:13,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:06:13,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 03:06:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:06:13,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 03:06:13,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:06:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:06:13,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:06:13,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495832463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:06:13,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:06:13,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:06:13,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906035344] [2022-12-14 03:06:13,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:06:13,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:06:13,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:06:13,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:06:13,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:13,339 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 03:06:13,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:06:13,356 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-12-14 03:06:13,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:06:13,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2022-12-14 03:06:13,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:06:13,356 INFO L225 Difference]: With dead ends: 27 [2022-12-14 03:06:13,356 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 03:06:13,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:13,357 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:06:13,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:06:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 03:06:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 03:06:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 03:06:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 03:06:13,360 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 17 [2022-12-14 03:06:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:06:13,361 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 03:06:13,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 03:06:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 03:06:13,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 03:06:13,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:06:13,361 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:06:13,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 03:06:13,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:06:13,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:06:13,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:06:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1916936588, now seen corresponding path program 1 times [2022-12-14 03:06:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:06:13,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521132820] [2022-12-14 03:06:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:13,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:06:13,613 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 03:06:13,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141223692] [2022-12-14 03:06:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:13,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:06:13,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:06:13,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 03:06:13,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 03:06:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:06:13,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:06:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:06:13,743 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 03:06:13,743 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:06:13,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 03:06:13,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 03:06:13,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 03:06:13,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 03:06:13,949 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 03:06:13,952 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:06:13,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:06:13 BoogieIcfgContainer [2022-12-14 03:06:13,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:06:13,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:06:13,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:06:13,980 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:06:13,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:12" (3/4) ... [2022-12-14 03:06:13,983 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:06:13,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:06:13,983 INFO L158 Benchmark]: Toolchain (without parser) took 3278.40ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 89.3MB in the beginning and 54.7MB in the end (delta: 34.6MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,984 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 132.1MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:06:13,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1405.01ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 88.9MB in the beginning and 75.6MB in the end (delta: 13.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.97ms. Allocated memory is still 159.4MB. Free memory was 75.6MB in the beginning and 71.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,985 INFO L158 Benchmark]: Boogie Preprocessor took 24.06ms. Allocated memory is still 159.4MB. Free memory was 71.4MB in the beginning and 70.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,985 INFO L158 Benchmark]: RCFGBuilder took 313.90ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 117.6MB in the end (delta: -47.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,985 INFO L158 Benchmark]: TraceAbstraction took 1473.51ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 55.8MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,986 INFO L158 Benchmark]: Witness Printer took 3.27ms. Allocated memory is still 159.4MB. Free memory was 55.8MB in the beginning and 54.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:06:13,988 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 132.1MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1405.01ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 88.9MB in the beginning and 75.6MB in the end (delta: 13.3MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.97ms. Allocated memory is still 159.4MB. Free memory was 75.6MB in the beginning and 71.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.06ms. Allocated memory is still 159.4MB. Free memory was 71.4MB in the beginning and 70.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.90ms. Allocated memory is still 159.4MB. Free memory was 70.2MB in the beginning and 117.6MB in the end (delta: -47.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1473.51ms. Allocated memory is still 159.4MB. Free memory was 116.6MB in the beginning and 55.8MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 3.27ms. Allocated memory is still 159.4MB. Free memory was 55.8MB in the beginning and 54.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842. 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); [L1861] 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) [L1861] RET printLine("Calling bad()...") VAL [\old(argc)=18, argc=18, argv={19:13}, argv={19:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_11_bad() [L1834] int data; [L1835] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1836] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1836] COND TRUE globalReturnsTrue() [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1850] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1850] RET globalReturnsTrue() VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1850] COND TRUE globalReturnsTrue() [L1853] data * data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1853]: 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 3 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 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 03:06:14,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 30978c2db0483c54c6d2f4356e79f0aec9e4ab2e170135de47b1918c9a4b19f8 --- 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 03:06:15,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:06:15,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:06:15,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:06:15,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:06:15,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:06:15,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:06:15,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:06:15,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:06:15,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:06:15,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:06:15,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:06:15,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:06:15,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:06:15,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:06:15,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:06:15,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:06:15,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:06:15,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:06:15,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:06:15,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:06:15,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:06:15,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:06:15,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:06:15,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:06:15,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:06:15,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:06:15,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:06:15,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:06:15,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:06:15,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:06:15,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:06:15,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:06:15,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:06:15,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:06:15,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:06:15,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:06:15,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:06:15,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:06:15,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:06:15,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:06:15,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 03:06:15,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:06:15,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:06:15,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:06:15,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:06:15,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:06:15,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:06:15,649 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:06:15,649 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:06:15,649 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:06:15,650 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:06:15,650 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:06:15,650 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:06:15,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 03:06:15,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 03:06:15,652 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 03:06:15,652 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 03:06:15,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:06:15,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:06:15,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:06:15,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:06:15,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 03:06:15,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:06:15,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:06:15,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:06:15,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:06:15,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 03:06:15,655 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_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30978c2db0483c54c6d2f4356e79f0aec9e4ab2e170135de47b1918c9a4b19f8 [2022-12-14 03:06:15,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:06:15,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:06:15,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:06:15,911 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:06:15,911 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:06:15,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:18,467 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:06:18,700 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:06:18,701 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:18,717 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/73d1fdc0b/cdee48c2cde442fabae59c6949127357/FLAGd14114b48 [2022-12-14 03:06:18,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/data/73d1fdc0b/cdee48c2cde442fabae59c6949127357 [2022-12-14 03:06:18,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:06:18,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:06:18,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:06:18,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:06:18,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:06:18,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:18" (1/1) ... [2022-12-14 03:06:18,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a36506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:18, skipping insertion in model container [2022-12-14 03:06:18,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:06:18" (1/1) ... [2022-12-14 03:06:18,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:06:18,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:06:19,085 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:06:19,413 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:06:19,417 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:19,419 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:19,420 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:19,421 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:19,716 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:06:19,720 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:06:19,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:06:19,731 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:06:19,746 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 03:06:19,791 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 03:06:19,792 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:19,793 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 03:06:19,794 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:19,795 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 03:06:19,802 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 03:06:19,804 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 03:06:19,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:06:20,010 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:06:20,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20 WrapperNode [2022-12-14 03:06:20,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:06:20,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:06:20,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:06:20,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:06:20,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,053 INFO L138 Inliner]: procedures = 943, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-14 03:06:20,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:06:20,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:06:20,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:06:20,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:06:20,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:06:20,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:06:20,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:06:20,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:06:20,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (1/1) ... [2022-12-14 03:06:20,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:06:20,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:06:20,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:06:20,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:06:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 03:06:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 03:06:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-14 03:06:20,135 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-14 03:06:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:06:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 03:06:20,245 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:06:20,246 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:06:21,595 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:06:21,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:06:21,599 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 03:06:21,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:21 BoogieIcfgContainer [2022-12-14 03:06:21,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:06:21,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:06:21,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:06:21,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:06:21,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:06:18" (1/3) ... [2022-12-14 03:06:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901f29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:21, skipping insertion in model container [2022-12-14 03:06:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:06:20" (2/3) ... [2022-12-14 03:06:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901f29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:06:21, skipping insertion in model container [2022-12-14 03:06:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:21" (3/3) ... [2022-12-14 03:06:21,606 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_11_bad.i [2022-12-14 03:06:21,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:06:21,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 03:06:21,651 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:06:21,656 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;@7af9d5c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:06:21,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 03:06:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 03:06:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 03:06:21,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:06:21,665 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:06:21,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:06:21,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:06:21,669 INFO L85 PathProgramCache]: Analyzing trace with hash -918563445, now seen corresponding path program 1 times [2022-12-14 03:06:21,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:06:21,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302997748] [2022-12-14 03:06:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:21,678 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 03:06:21,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:06:21,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:21,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:06:21,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 03:06:21,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 03:06:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 03:06:21,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 03:06:21,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 03:06:21,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302997748] [2022-12-14 03:06:21,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302997748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:06:21,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:06:21,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 03:06:21,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066201433] [2022-12-14 03:06:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:06:21,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 03:06:21,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 03:06:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 03:06:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:21,872 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 03:06:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:06:21,907 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2022-12-14 03:06:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 03:06:21,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-14 03:06:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:06:21,913 INFO L225 Difference]: With dead ends: 49 [2022-12-14 03:06:21,913 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 03:06:21,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 03:06:21,917 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:06:21,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:06:21,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 03:06:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 03:06:21,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 03:06:21,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-14 03:06:21,946 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 19 [2022-12-14 03:06:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:06:21,948 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-14 03:06:21,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 03:06:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-14 03:06:21,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 03:06:21,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:06:21,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:06:21,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 03:06:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:06:22,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1561712550, now seen corresponding path program 1 times [2022-12-14 03:06:22,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 03:06:22,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800819910] [2022-12-14 03:06:22,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:06:22,158 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 03:06:22,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 03:06:22,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:06:22,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:06:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:06:22,413 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 03:06:22,413 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:06:22,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 03:06:22,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 03:06:22,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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 03:06:22,627 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 03:06:22,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:06:22,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:06:22 BoogieIcfgContainer [2022-12-14 03:06:22,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:06:22,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:06:22,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:06:22,721 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:06:22,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:06:21" (3/4) ... [2022-12-14 03:06:22,725 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:06:22,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:06:22,726 INFO L158 Benchmark]: Toolchain (without parser) took 3995.50ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 29.2MB in the beginning and 43.9MB in the end (delta: -14.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,727 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:06:22,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1279.22ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 29.0MB in the beginning and 49.2MB in the end (delta: -20.1MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 88.1MB. Free memory was 49.2MB in the beginning and 45.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,729 INFO L158 Benchmark]: Boogie Preprocessor took 20.19ms. Allocated memory is still 88.1MB. Free memory was 45.5MB in the beginning and 43.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,730 INFO L158 Benchmark]: RCFGBuilder took 1526.20ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 55.3MB in the end (delta: -12.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,730 INFO L158 Benchmark]: TraceAbstraction took 1117.66ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 43.9MB in the end (delta: 10.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-14 03:06:22,731 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 88.1MB. Free memory is still 43.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:06:22,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1279.22ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 29.0MB in the beginning and 49.2MB in the end (delta: -20.1MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.27ms. Allocated memory is still 88.1MB. Free memory was 49.2MB in the beginning and 45.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.19ms. Allocated memory is still 88.1MB. Free memory was 45.5MB in the beginning and 43.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1526.20ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 55.3MB in the end (delta: -12.4MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1117.66ms. Allocated memory is still 88.1MB. Free memory was 54.7MB in the beginning and 43.9MB in the end (delta: 10.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 88.1MB. Free memory is still 43.9MB. 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1861] 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) [L1861] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_11_bad() [L1834] int data; [L1835] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1836] COND TRUE globalReturnsTrue() [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1850] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1850] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1850] COND TRUE globalReturnsTrue() [L1853] data * data VAL [data=-2147483648, 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: 1853]: 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 3 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 03:06:22,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_682dd48b-d5d7-4e3a-8e63-a21668a963b7/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