./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/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_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/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_9753f8e2-3a04-429e-b9c9-da20361fad1b/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 a5c70f444a3bb6b30e83bffdf1e61714f8f2c3aa7bf7e3910c6ab80a1b5b19ac --- 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 [2022-11-26 01:02:27,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:02:27,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:02:28,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:02:28,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:02:28,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:02:28,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:02:28,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:02:28,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:02:28,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:02:28,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:02:28,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:02:28,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:02:28,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:02:28,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:02:28,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:02:28,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:02:28,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:02:28,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:02:28,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:02:28,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:02:28,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:02:28,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:02:28,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:02:28,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:02:28,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:02:28,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:02:28,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:02:28,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:02:28,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:02:28,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:02:28,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:02:28,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:02:28,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:02:28,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:02:28,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:02:28,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:02:28,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:02:28,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:02:28,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:02:28,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:02:28,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:02:28,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:02:28,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:02:28,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:02:28,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:02:28,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:02:28,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:02:28,098 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:02:28,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:02:28,099 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:02:28,099 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:02:28,099 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:02:28,099 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:02:28,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:02:28,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:02:28,100 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:02:28,100 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:02:28,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:02:28,101 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:02:28,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:02:28,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:02:28,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:02:28,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:02:28,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:02:28,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:02:28,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:02:28,103 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:02:28,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:02:28,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:02:28,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:02:28,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:02:28,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:02:28,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:28,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:02:28,105 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:02:28,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:02:28,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:02:28,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:02:28,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:02:28,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:02:28,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:02:28,107 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_9753f8e2-3a04-429e-b9c9-da20361fad1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5c70f444a3bb6b30e83bffdf1e61714f8f2c3aa7bf7e3910c6ab80a1b5b19ac [2022-11-26 01:02:28,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:02:28,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:02:28,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:02:28,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:02:28,529 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:02:28,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-26 01:02:31,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:02:32,158 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:02:32,159 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-26 01:02:32,180 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/data/07c6e19f5/97e04b363af0474d9cdc42efe6d02f1a/FLAGe585aff1f [2022-11-26 01:02:32,199 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/data/07c6e19f5/97e04b363af0474d9cdc42efe6d02f1a [2022-11-26 01:02:32,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:02:32,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:02:32,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:32,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:02:32,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:02:32,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:32" (1/1) ... [2022-11-26 01:02:32,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9349c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:32, skipping insertion in model container [2022-11-26 01:02:32,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:02:32" (1/1) ... [2022-11-26 01:02:32,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:02:32,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:02:32,812 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:33,365 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:02:33,372 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:02:33,374 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:02:33,377 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:02:33,378 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:02:33,409 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:02:33,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:33,426 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:02:33,449 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:02:33,496 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:02:33,498 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:02:33,499 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:02:33,502 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:02:33,503 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:02:33,508 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:02:33,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:02:33,670 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:02:33,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33 WrapperNode [2022-11-26 01:02:33,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:02:33,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:33,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:02:33,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:02:33,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,746 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-26 01:02:33,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:02:33,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:02:33,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:02:33,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:02:33,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,782 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:02:33,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:02:33,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:02:33,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:02:33,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (1/1) ... [2022-11-26 01:02:33,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:02:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:33,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:02:33,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:02:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:02:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:02:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:02:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:02:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:02:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:02:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:02:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:02:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:02:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:02:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:02:34,150 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:02:34,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:02:34,426 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:02:34,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:02:34,469 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:02:34,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:34 BoogieIcfgContainer [2022-11-26 01:02:34,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:02:34,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:02:34,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:02:34,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:02:34,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:02:32" (1/3) ... [2022-11-26 01:02:34,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a3a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:34, skipping insertion in model container [2022-11-26 01:02:34,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:02:33" (2/3) ... [2022-11-26 01:02:34,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a3a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:02:34, skipping insertion in model container [2022-11-26 01:02:34,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:34" (3/3) ... [2022-11-26 01:02:34,483 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-26 01:02:34,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:02:34,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:02:34,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:02:34,587 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;@4d3a7162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:02:34,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:02:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 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) [2022-11-26 01:02:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 01:02:34,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:34,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:02:34,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:02:34,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:34,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1409769534, now seen corresponding path program 1 times [2022-11-26 01:02:34,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:34,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820922871] [2022-11-26 01:02:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:02:34,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:02:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:02:35,028 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:02:35,031 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:02:35,033 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:02:35,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:02:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:02:35,044 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:02:35,052 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:02:35,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:02:35 BoogieIcfgContainer [2022-11-26 01:02:35,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:02:35,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:02:35,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:02:35,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:02:35,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:02:34" (3/4) ... [2022-11-26 01:02:35,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 01:02:35,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 01:02:35,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:02:35,148 INFO L158 Benchmark]: Toolchain (without parser) took 2942.81ms. Allocated memory is still 172.0MB. Free memory was 124.6MB in the beginning and 74.9MB in the end (delta: 49.7MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,149 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 90.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:02:35,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1462.50ms. Allocated memory is still 172.0MB. Free memory was 124.6MB in the beginning and 116.7MB in the end (delta: 7.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,150 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.92ms. Allocated memory is still 172.0MB. Free memory was 116.7MB in the beginning and 114.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,151 INFO L158 Benchmark]: Boogie Preprocessor took 39.05ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 112.6MB in the end (delta: 954.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:02:35,151 INFO L158 Benchmark]: RCFGBuilder took 685.32ms. Allocated memory is still 172.0MB. Free memory was 112.6MB in the beginning and 95.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,152 INFO L158 Benchmark]: TraceAbstraction took 618.94ms. Allocated memory is still 172.0MB. Free memory was 95.6MB in the beginning and 77.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,153 INFO L158 Benchmark]: Witness Printer took 50.85ms. Allocated memory is still 172.0MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:02:35,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 90.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1462.50ms. Allocated memory is still 172.0MB. Free memory was 124.6MB in the beginning and 116.7MB in the end (delta: 7.9MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.92ms. Allocated memory is still 172.0MB. Free memory was 116.7MB in the beginning and 114.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.05ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 112.6MB in the end (delta: 954.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 685.32ms. Allocated memory is still 172.0MB. Free memory was 112.6MB in the beginning and 95.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 618.94ms. Allocated memory is still 172.0MB. Free memory was 95.6MB in the beginning and 77.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 50.85ms. Allocated memory is still 172.0MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 1574]: integer overflow possible integer overflow possible We found a 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); [L1565] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741830:1073741829}, argv={1073741830:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_fscanf_multiply_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fscanf_multiply_67_structType myStruct; [L1557] data = 0 [L1559] EXPR \read(data) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_fscanf_multiply_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1572] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] [L1574] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] - UnprovableResult [Line: 1574]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-11-26 01:02:35,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9753f8e2-3a04-429e-b9c9-da20361fad1b/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)