./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur --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 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 --- 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-38b53e6 [2022-11-25 23:30:10,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:30:10,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:30:10,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:30:10,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:30:10,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:30:10,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:30:10,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:30:10,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:30:10,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:30:10,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:30:10,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:30:10,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:30:10,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:30:10,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:30:10,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:30:10,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:30:10,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:30:10,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:30:10,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:30:10,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:30:10,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:30:10,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:30:10,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:30:10,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:30:10,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:30:10,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:30:10,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:30:10,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:30:10,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:30:10,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:30:10,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:30:10,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:30:10,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:30:10,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:30:10,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:30:10,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:30:10,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:30:10,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:30:10,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:30:10,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:30:10,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:30:10,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:30:10,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:30:10,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:30:10,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:30:10,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:30:10,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:30:10,258 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:30:10,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:30:10,259 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:30:10,259 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:30:10,259 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:30:10,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:30:10,260 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:30:10,260 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:30:10,260 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:30:10,260 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:30:10,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:30:10,261 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:30:10,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:30:10,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:30:10,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:30:10,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:30:10,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:30:10,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:30:10,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:30:10,264 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:30:10,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:30:10,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:30:10,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:30:10,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:30:10,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:30:10,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:10,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:30:10,266 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:30:10,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:30:10,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:30:10,266 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:30:10,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:30:10,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:30:10,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:30:10,267 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_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 [2022-11-25 23:30:10,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:30:10,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:30:10,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:30:10,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:30:10,551 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:30:10,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:13,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:30:14,105 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:30:14,106 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:14,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/8c8413ef9/3e311ec37b6048a79021386cd4fdf7a8/FLAGb80aa567c [2022-11-25 23:30:14,154 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/8c8413ef9/3e311ec37b6048a79021386cd4fdf7a8 [2022-11-25 23:30:14,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:30:14,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:30:14,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:14,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:30:14,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:30:14,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:14" (1/1) ... [2022-11-25 23:30:14,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e4f9d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:14, skipping insertion in model container [2022-11-25 23:30:14,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:14" (1/1) ... [2022-11-25 23:30:14,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:30:14,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:30:14,613 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:30:15,188 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:30:15,195 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:15,197 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:15,200 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:15,201 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:15,230 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:30:15,236 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:30:15,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:15,249 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:30:15,271 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:30:15,407 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:30:15,409 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:15,410 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:15,412 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:15,413 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:15,435 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:30:15,440 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:30:15,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:15,610 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:30:15,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15 WrapperNode [2022-11-25 23:30:15,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:15,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:15,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:30:15,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:30:15,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,706 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-25 23:30:15,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:15,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:30:15,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:30:15,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:30:15,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:30:15,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:30:15,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:30:15,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:30:15,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (1/1) ... [2022-11-25 23:30:15,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:30:15,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:30:15,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:30:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:30:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:30:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:30:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:30:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:30:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:30:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:30:15,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:30:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:30:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:30:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:30:15,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:30:15,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:30:16,216 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:30:16,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:30:16,259 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:30:16,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:16 BoogieIcfgContainer [2022-11-25 23:30:16,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:30:16,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:30:16,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:30:16,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:30:16,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:30:14" (1/3) ... [2022-11-25 23:30:16,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdd1258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:16, skipping insertion in model container [2022-11-25 23:30:16,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:15" (2/3) ... [2022-11-25 23:30:16,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fdd1258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:16, skipping insertion in model container [2022-11-25 23:30:16,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:16" (3/3) ... [2022-11-25 23:30:16,276 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:16,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:30:16,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:30:16,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:30:16,375 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;@4615db51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:30:16,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:30:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:30:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:30:16,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:16,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:16,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:16,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash -970101220, now seen corresponding path program 1 times [2022-11-25 23:30:16,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:16,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804945758] [2022-11-25 23:30:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:16,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:16,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:16,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804945758] [2022-11-25 23:30:16,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804945758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:16,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:16,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:30:16,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352832598] [2022-11-25 23:30:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:16,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:16,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:16,680 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:16,721 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-25 23:30:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-25 23:30:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:16,731 INFO L225 Difference]: With dead ends: 29 [2022-11-25 23:30:16,731 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 23:30:16,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:16,741 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:16,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 23:30:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 23:30:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:30:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 23:30:16,782 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-11-25 23:30:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:16,784 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 23:30:16,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 23:30:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:30:16,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:16,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:16,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:30:16,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash -268937897, now seen corresponding path program 1 times [2022-11-25 23:30:16,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:16,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395915900] [2022-11-25 23:30:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:16,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:17,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:30:17,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395915900] [2022-11-25 23:30:17,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395915900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:17,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:17,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448042972] [2022-11-25 23:30:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:17,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:30:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:17,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:17,030 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:17,048 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-25 23:30:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:17,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-25 23:30:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:17,050 INFO L225 Difference]: With dead ends: 14 [2022-11-25 23:30:17,050 INFO L226 Difference]: Without dead ends: 13 [2022-11-25 23:30:17,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:17,052 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:17,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-25 23:30:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-25 23:30:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:30:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-25 23:30:17,058 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-11-25 23:30:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:17,058 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-25 23:30:17,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-25 23:30:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:30:17,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:17,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:17,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:30:17,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:17,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:17,061 INFO L85 PathProgramCache]: Analyzing trace with hash 252859848, now seen corresponding path program 1 times [2022-11-25 23:30:17,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:30:17,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517258285] [2022-11-25 23:30:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:30:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:30:17,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:30:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:30:17,191 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:30:17,191 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:30:17,193 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:30:17,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:30:17,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:30:17,199 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:30:17,204 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:30:17,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:30:17 BoogieIcfgContainer [2022-11-25 23:30:17,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:30:17,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:30:17,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:30:17,232 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:30:17,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:16" (3/4) ... [2022-11-25 23:30:17,236 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:30:17,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:30:17,237 INFO L158 Benchmark]: Toolchain (without parser) took 3075.12ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 91.5MB in the beginning and 143.3MB in the end (delta: -51.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:17,238 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:17,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1447.23ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 91.4MB in the beginning and 115.8MB in the end (delta: -24.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-11-25 23:30:17,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.37ms. Allocated memory is still 186.6MB. Free memory was 115.8MB in the beginning and 112.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:30:17,240 INFO L158 Benchmark]: Boogie Preprocessor took 39.97ms. Allocated memory is still 186.6MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 953.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:17,240 INFO L158 Benchmark]: RCFGBuilder took 513.85ms. Allocated memory is still 186.6MB. Free memory was 111.6MB in the beginning and 95.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:30:17,241 INFO L158 Benchmark]: TraceAbstraction took 966.98ms. Allocated memory is still 186.6MB. Free memory was 95.9MB in the beginning and 143.3MB in the end (delta: -47.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:17,241 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 186.6MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:17,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1447.23ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 91.4MB in the beginning and 115.8MB in the end (delta: -24.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.37ms. Allocated memory is still 186.6MB. Free memory was 115.8MB in the beginning and 112.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.97ms. Allocated memory is still 186.6MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 953.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 513.85ms. Allocated memory is still 186.6MB. Free memory was 111.6MB in the beginning and 95.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 966.98ms. Allocated memory is still 186.6MB. Free memory was 95.9MB in the beginning and 143.3MB in the end (delta: -47.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 186.6MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_14_bad() [L1550] int data; [L1551] 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] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] 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] [L1566] COND TRUE globalFive==5 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] [L1569] ++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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 24 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:30:17,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur --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 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 --- 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-38b53e6 [2022-11-25 23:30:19,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:30:19,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:30:19,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:30:19,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:30:19,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:30:19,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:30:19,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:30:19,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:30:19,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:30:19,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:30:19,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:30:19,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:30:19,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:30:19,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:30:19,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:30:19,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:30:19,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:30:19,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:30:19,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:30:19,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:30:19,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:30:19,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:30:19,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:30:19,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:30:19,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:30:19,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:30:19,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:30:19,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:30:19,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:30:19,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:30:19,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:30:19,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:30:19,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:30:19,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:30:19,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:30:19,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:30:19,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:30:19,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:30:19,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:30:19,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:30:19,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:30:19,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:30:19,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:30:19,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:30:19,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:30:19,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:30:19,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:30:19,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:30:19,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:30:19,894 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:30:19,895 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:30:19,895 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:30:19,896 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:30:19,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:30:19,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:30:19,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:30:19,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:30:19,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:30:19,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:30:19,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:30:19,899 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:30:19,899 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:30:19,899 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:30:19,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:30:19,900 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:30:19,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:30:19,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:30:19,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:30:19,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:30:19,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:19,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:30:19,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:30:19,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:30:19,902 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:30:19,902 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:30:19,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:30:19,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:30:19,903 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:30:19,903 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_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79bd2f28b0c8250720f246576bcad7103ec15cb40088dde318a597c1fb712894 [2022-11-25 23:30:20,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:30:20,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:30:20,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:30:20,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:30:20,399 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:30:20,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:23,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:30:23,743 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:30:23,743 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:23,772 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/d565956c9/f8b6995486154520b50fd2b9fc17af08/FLAG8b4bdc22a [2022-11-25 23:30:23,791 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/data/d565956c9/f8b6995486154520b50fd2b9fc17af08 [2022-11-25 23:30:23,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:30:23,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:30:23,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:23,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:30:23,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:30:23,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:23" (1/1) ... [2022-11-25 23:30:23,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166b140b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:23, skipping insertion in model container [2022-11-25 23:30:23,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:30:23" (1/1) ... [2022-11-25 23:30:23,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:30:23,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:30:24,282 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:30:24,746 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:30:24,752 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:24,753 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:24,756 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:24,757 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:24,788 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:30:24,798 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:30:24,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:24,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:30:24,877 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:30:24,983 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:30:24,989 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:24,993 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:30:24,996 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:24,999 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:30:25,006 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:30:25,010 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:30:25,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:30:25,207 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:30:25,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25 WrapperNode [2022-11-25 23:30:25,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:30:25,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:25,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:30:25,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:30:25,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,292 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-11-25 23:30:25,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:30:25,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:30:25,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:30:25,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:30:25,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,318 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:30:25,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:30:25,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:30:25,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:30:25,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (1/1) ... [2022-11-25 23:30:25,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:30:25,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:30:25,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:30:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:30:25,437 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:30:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:30:25,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:30:25,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:30:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:30:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:30:25,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:30:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:30:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:30:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:30:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:30:25,662 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:30:25,664 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:30:25,894 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:30:25,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:30:25,900 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:30:25,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:25 BoogieIcfgContainer [2022-11-25 23:30:25,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:30:25,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:30:25,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:30:25,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:30:25,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:30:23" (1/3) ... [2022-11-25 23:30:25,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5371530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:25, skipping insertion in model container [2022-11-25 23:30:25,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:30:25" (2/3) ... [2022-11-25 23:30:25,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5371530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:30:25, skipping insertion in model container [2022-11-25 23:30:25,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:25" (3/3) ... [2022-11-25 23:30:25,914 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_14_bad.i [2022-11-25 23:30:25,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:30:25,974 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:30:26,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:30:26,050 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;@67363da6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:30:26,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:30:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:30:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:30:26,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:26,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:26,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:26,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2022-11-25 23:30:26,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:30:26,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015629959] [2022-11-25 23:30:26,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:26,098 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 [2022-11-25 23:30:26,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:30:26,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:30:26,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:26,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:30:26,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:30:26,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:26,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:30:26,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:30:26,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015629959] [2022-11-25 23:30:26,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015629959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:26,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:26,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:30:26,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746439976] [2022-11-25 23:30:26,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:26,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:30:26,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:30:26,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:30:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:30:26,318 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:26,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:26,339 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-25 23:30:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:30:26,342 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 23:30:26,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:26,350 INFO L225 Difference]: With dead ends: 24 [2022-11-25 23:30:26,350 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 23:30:26,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:30:26,357 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:26,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 23:30:26,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 23:30:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:30:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-25 23:30:26,396 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-11-25 23:30:26,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:26,398 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-25 23:30:26,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-25 23:30:26,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:30:26,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:26,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:26,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:26,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:26,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash -418707075, now seen corresponding path program 1 times [2022-11-25 23:30:26,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:30:26,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746426033] [2022-11-25 23:30:26,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:26,620 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 [2022-11-25 23:30:26,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:30:26,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:30:26,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:30:26,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:30:26,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:30:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:30:26,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:30:26,820 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:30:26,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746426033] [2022-11-25 23:30:26,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746426033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:30:26,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:30:26,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:30:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645393437] [2022-11-25 23:30:26,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:30:26,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:30:26,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:30:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:30:26,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:26,832 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:30:26,854 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-25 23:30:26,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:30:26,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 23:30:26,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:30:26,856 INFO L225 Difference]: With dead ends: 20 [2022-11-25 23:30:26,857 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 23:30:26,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:30:26,858 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:30:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:30:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 23:30:26,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 23:30:26,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:30:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-25 23:30:26,868 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-11-25 23:30:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:30:26,869 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-25 23:30:26,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:30:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-25 23:30:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:30:26,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:30:26,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:30:26,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:30:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:27,071 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:30:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:30:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1052736290, now seen corresponding path program 1 times [2022-11-25 23:30:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:30:27,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779453199] [2022-11-25 23:30:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:30:27,073 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 [2022-11-25 23:30:27,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:30:27,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:30:27,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 (4)] Waiting until timeout for monitored process [2022-11-25 23:30:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:30:27,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:30:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:30:27,249 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:30:27,249 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:30:27,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:30:27,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:30:27,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:30:27,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:30:27,469 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:30:27,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:30:27,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:30:27 BoogieIcfgContainer [2022-11-25 23:30:27,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:30:27,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:30:27,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:30:27,520 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:30:27,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:30:25" (3/4) ... [2022-11-25 23:30:27,524 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:30:27,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:30:27,525 INFO L158 Benchmark]: Toolchain (without parser) took 3728.13ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 35.2MB in the beginning and 69.4MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:27,525 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:27,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1409.05ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 35.0MB in the beginning and 63.3MB in the end (delta: -28.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-11-25 23:30:27,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.51ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 60.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:30:27,527 INFO L158 Benchmark]: Boogie Preprocessor took 31.33ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:30:27,528 INFO L158 Benchmark]: RCFGBuilder took 580.22ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 43.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:30:27,528 INFO L158 Benchmark]: TraceAbstraction took 1611.55ms. Allocated memory is still 100.7MB. Free memory was 43.3MB in the beginning and 70.1MB in the end (delta: -26.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-11-25 23:30:27,529 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 69.4MB in the end (delta: 630.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:30:27,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 58.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1409.05ms. Allocated memory was 79.7MB in the beginning and 100.7MB in the end (delta: 21.0MB). Free memory was 35.0MB in the beginning and 63.3MB in the end (delta: -28.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.51ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 60.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.33ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.22ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 43.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1611.55ms. Allocated memory is still 100.7MB. Free memory was 43.3MB in the beginning and 70.1MB in the end (delta: -26.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 69.4MB in the end (delta: 630.5kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1578] 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) [L1578] 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] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_14_bad() [L1550] int data; [L1551] 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] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] 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] [L1566] COND TRUE globalFive==5 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] [L1569] ++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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:30:27,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b4ab55-1cfe-4ae1-8a5d-15f1dffc9fdf/bin/utaipan-ByfvJB40ur/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