./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f5dc8e5bfc0ce9689b115b82e5c527b55994cc129be8a954a388524f0fff456 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:16:01,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:16:01,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:16:01,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:16:01,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:16:01,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:16:01,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:16:01,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:16:01,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:16:01,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:16:01,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:16:01,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:16:01,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:16:01,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:16:01,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:16:01,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:16:01,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:16:01,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:16:01,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:16:01,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:16:01,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:16:01,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:16:01,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:16:01,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:16:01,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:16:01,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:16:01,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:16:01,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:16:01,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:16:01,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:16:01,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:16:01,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:16:01,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:16:01,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:16:01,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:16:01,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:16:01,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:16:01,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:16:01,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:16:01,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:16:01,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:16:01,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:16:01,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:16:01,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:16:01,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:16:01,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:16:01,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:16:01,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:16:01,208 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:16:01,208 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:16:01,208 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:16:01,208 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:16:01,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:16:01,209 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:16:01,209 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:16:01,209 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:16:01,209 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:16:01,209 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:16:01,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:16:01,210 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:16:01,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:16:01,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:16:01,212 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:16:01,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:16:01,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:16:01,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:16:01,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:16:01,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:16:01,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:16:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:16:01,213 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:16:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:16:01,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:16:01,214 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:16:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:16:01,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:16:01,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:16:01,214 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_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f5dc8e5bfc0ce9689b115b82e5c527b55994cc129be8a954a388524f0fff456 [2022-12-14 10:16:01,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:16:01,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:16:01,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:16:01,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:16:01,431 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:16:01,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:04,016 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:16:04,217 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:16:04,217 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:04,231 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/3e32707ab/7bfa005bb424478ead63c6a55f9d5707/FLAGa695d5909 [2022-12-14 10:16:04,242 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/3e32707ab/7bfa005bb424478ead63c6a55f9d5707 [2022-12-14 10:16:04,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:16:04,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:16:04,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:16:04,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:16:04,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:16:04,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:16:04" (1/1) ... [2022-12-14 10:16:04,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d152512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:04, skipping insertion in model container [2022-12-14 10:16:04,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:16:04" (1/1) ... [2022-12-14 10:16:04,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:16:04,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:16:04,521 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:16:04,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:16:04,798 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:04,800 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:04,802 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:04,802 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:04,817 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:16:04,819 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:16:04,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:16:04,829 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:16:04,853 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:16:04,902 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:16:04,904 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:04,905 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:04,907 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:04,908 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:04,912 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:16:04,914 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:16:04,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:16:05,042 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:16:05,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05 WrapperNode [2022-12-14 10:16:05,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:16:05,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:16:05,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:16:05,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:16:05,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,099 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-12-14 10:16:05,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:16:05,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:16:05,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:16:05,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:16:05,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:16:05,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:16:05,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:16:05,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:16:05,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (1/1) ... [2022-12-14 10:16:05,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:16:05,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:16:05,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:16:05,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:16:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:16:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:16:05,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:16:05,311 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:16:05,313 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:16:05,416 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:16:05,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:16:05,449 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:16:05,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:05 BoogieIcfgContainer [2022-12-14 10:16:05,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:16:05,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:16:05,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:16:05,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:16:05,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:16:04" (1/3) ... [2022-12-14 10:16:05,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704f73b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:16:05, skipping insertion in model container [2022-12-14 10:16:05,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:05" (2/3) ... [2022-12-14 10:16:05,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704f73b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:16:05, skipping insertion in model container [2022-12-14 10:16:05,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:05" (3/3) ... [2022-12-14 10:16:05,460 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:05,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:16:05,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:16:05,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:16:05,531 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;@6e521c55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:16:05,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:16:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 10:16:05,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:16:05,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:16:05,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:16:05,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:16:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:16:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 10:16:05,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:16:05,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006953608] [2022-12-14 10:16:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:16:05,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:16:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:16:05,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:16:05,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:16:05,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006953608] [2022-12-14 10:16:05,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006953608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:16:05,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:16:05,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:16:05,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153443018] [2022-12-14 10:16:05,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:16:05,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:16:05,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:16:05,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:16:05,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:16:05,851 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:16:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:16:05,895 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 10:16:05,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:16:05,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 10:16:05,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:16:05,902 INFO L225 Difference]: With dead ends: 15 [2022-12-14 10:16:05,902 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 10:16:05,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:16:05,906 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:16:05,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:16:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 10:16:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 10:16:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:16:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 10:16:05,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 10:16:05,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:16:05,933 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 10:16:05,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:16:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 10:16:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:16:05,934 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:16:05,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:16:05,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:16:05,934 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:16:05,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:16:05,935 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2022-12-14 10:16:05,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:16:05,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691200846] [2022-12-14 10:16:05,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:16:05,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:16:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:16:05,956 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:16:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:16:05,982 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:16:05,982 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:16:05,983 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:16:05,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:16:05,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:16:05,988 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:16:05,991 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:16:06,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:16:06 BoogieIcfgContainer [2022-12-14 10:16:06,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:16:06,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:16:06,006 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:16:06,007 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:16:06,007 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:05" (3/4) ... [2022-12-14 10:16:06,009 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:16:06,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:16:06,010 INFO L158 Benchmark]: Toolchain (without parser) took 1764.87ms. Allocated memory was 111.1MB in the beginning and 151.0MB in the end (delta: 39.8MB). Free memory was 67.0MB in the beginning and 83.2MB in the end (delta: -16.3MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-14 10:16:06,010 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:16:06,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.05ms. Allocated memory was 111.1MB in the beginning and 151.0MB in the end (delta: 39.8MB). Free memory was 67.0MB in the beginning and 79.4MB in the end (delta: -12.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-12-14 10:16:06,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.27ms. Allocated memory is still 151.0MB. Free memory was 79.4MB in the beginning and 76.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:16:06,011 INFO L158 Benchmark]: Boogie Preprocessor took 27.50ms. Allocated memory is still 151.0MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:16:06,012 INFO L158 Benchmark]: RCFGBuilder took 322.93ms. Allocated memory is still 151.0MB. Free memory was 74.2MB in the beginning and 60.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 10:16:06,012 INFO L158 Benchmark]: TraceAbstraction took 551.85ms. Allocated memory is still 151.0MB. Free memory was 59.5MB in the beginning and 83.2MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:16:06,012 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 151.0MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:16:06,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.05ms. Allocated memory was 111.1MB in the beginning and 151.0MB in the end (delta: 39.8MB). Free memory was 67.0MB in the beginning and 79.4MB in the end (delta: -12.4MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.27ms. Allocated memory is still 151.0MB. Free memory was 79.4MB in the beginning and 76.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.50ms. Allocated memory is still 151.0MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.93ms. Allocated memory is still 151.0MB. Free memory was 74.2MB in the beginning and 60.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 551.85ms. Allocated memory is still 151.0MB. Free memory was 59.5MB in the beginning and 83.2MB in the end (delta: -23.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 151.0MB. Free memory is still 83.2MB. 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483653:2147483652}, argv={2147483653:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_51b_badSink(data) [L1577] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:16:06,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f5dc8e5bfc0ce9689b115b82e5c527b55994cc129be8a954a388524f0fff456 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:16:07,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:16:07,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:16:07,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:16:07,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:16:07,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:16:07,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:16:07,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:16:07,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:16:07,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:16:07,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:16:07,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:16:07,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:16:07,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:16:07,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:16:07,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:16:07,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:16:07,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:16:07,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:16:07,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:16:07,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:16:07,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:16:07,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:16:07,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:16:07,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:16:07,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:16:07,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:16:07,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:16:07,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:16:07,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:16:07,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:16:07,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:16:07,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:16:07,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:16:07,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:16:07,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:16:07,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:16:07,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:16:07,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:16:07,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:16:07,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:16:07,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 10:16:07,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:16:07,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:16:07,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:16:07,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:16:07,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:16:07,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:16:07,904 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:16:07,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:16:07,904 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:16:07,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:16:07,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:16:07,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:16:07,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:16:07,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:16:07,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:16:07,908 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_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f5dc8e5bfc0ce9689b115b82e5c527b55994cc129be8a954a388524f0fff456 [2022-12-14 10:16:08,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:16:08,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:16:08,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:16:08,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:16:08,133 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:16:08,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:10,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:16:10,957 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:16:10,957 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:10,970 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/a7c476d4d/1301d29c67cf4e849577390cd9439c90/FLAG03a0daf4d [2022-12-14 10:16:10,980 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/data/a7c476d4d/1301d29c67cf4e849577390cd9439c90 [2022-12-14 10:16:10,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:16:10,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:16:10,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:16:10,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:16:10,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:16:10,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:16:10" (1/1) ... [2022-12-14 10:16:10,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333726b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:10, skipping insertion in model container [2022-12-14 10:16:10,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:16:10" (1/1) ... [2022-12-14 10:16:10,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:16:11,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:16:11,261 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:16:11,580 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:16:11,584 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:11,586 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:11,587 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:11,587 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:11,607 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:16:11,610 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:16:11,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:16:11,628 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:16:11,648 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:16:11,697 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:16:11,699 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:11,700 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:16:11,702 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:11,703 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:16:11,707 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:16:11,709 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:16:11,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:16:11,790 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:16:11,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11 WrapperNode [2022-12-14 10:16:11,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:16:11,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:16:11,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:16:11,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:16:11,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,834 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2022-12-14 10:16:11,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:16:11,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:16:11,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:16:11,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:16:11,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:16:11,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:16:11,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:16:11,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:16:11,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (1/1) ... [2022-12-14 10:16:11,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:16:11,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:16:11,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:16:11,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:16:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:16:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:16:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:16:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:16:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:16:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 10:16:12,056 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:16:12,058 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:16:12,172 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:16:12,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:16:12,177 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:16:12,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:12 BoogieIcfgContainer [2022-12-14 10:16:12,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:16:12,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:16:12,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:16:12,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:16:12,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:16:10" (1/3) ... [2022-12-14 10:16:12,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cb8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:16:12, skipping insertion in model container [2022-12-14 10:16:12,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:16:11" (2/3) ... [2022-12-14 10:16:12,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726cb8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:16:12, skipping insertion in model container [2022-12-14 10:16:12,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:12" (3/3) ... [2022-12-14 10:16:12,185 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_51_bad.i [2022-12-14 10:16:12,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:16:12,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:16:12,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:16:12,238 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;@4b56637c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:16:12,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:16:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 10:16:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:16:12,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:16:12,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:16:12,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:16:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:16:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 10:16:12,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:16:12,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218048237] [2022-12-14 10:16:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:16:12,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:16:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:16:12,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 10:16:12,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 10:16:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:16:12,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 10:16:12,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:16:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:16:12,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:16:12,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:16:12,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218048237] [2022-12-14 10:16:12,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218048237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:16:12,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:16:12,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:16:12,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707120362] [2022-12-14 10:16:12,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:16:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:16:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:16:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:16:12,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:16:12,434 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:16:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:16:12,448 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 10:16:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:16:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 10:16:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:16:12,454 INFO L225 Difference]: With dead ends: 23 [2022-12-14 10:16:12,454 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 10:16:12,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:16:12,459 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:16:12,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:16:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 10:16:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 10:16:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:16:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 10:16:12,484 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 10:16:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:16:12,485 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 10:16:12,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:16:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 10:16:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:16:12,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:16:12,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:16:12,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:16:12,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:16:12,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:16:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:16:12,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 10:16:12,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:16:12,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396688561] [2022-12-14 10:16:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:16:12,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:16:12,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:16:12,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 10:16:12,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 10:16:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:16:12,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:16:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:16:12,821 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:16:12,821 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:16:12,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:16:12,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:16:12,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 10:16:13,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:16:13,030 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:16:13,034 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:16:13,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:16:13 BoogieIcfgContainer [2022-12-14 10:16:13,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:16:13,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:16:13,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:16:13,076 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:16:13,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:16:12" (3/4) ... [2022-12-14 10:16:13,086 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:16:13,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:16:13,088 INFO L158 Benchmark]: Toolchain (without parser) took 2103.69ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.2MB in the beginning and 49.4MB in the end (delta: 6.8MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,089 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:16:13,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.05ms. Allocated memory is still 81.8MB. Free memory was 55.9MB in the beginning and 32.0MB in the end (delta: 24.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,092 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.67ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 32.0MB in the beginning and 70.2MB in the end (delta: -38.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,093 INFO L158 Benchmark]: Boogie Preprocessor took 22.13ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:16:13,095 INFO L158 Benchmark]: RCFGBuilder took 321.78ms. Allocated memory is still 98.6MB. Free memory was 68.1MB in the beginning and 54.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,096 INFO L158 Benchmark]: TraceAbstraction took 893.34ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 50.0MB in the end (delta: 3.9MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,097 INFO L158 Benchmark]: Witness Printer took 11.21ms. Allocated memory is still 98.6MB. Free memory was 50.0MB in the beginning and 49.4MB in the end (delta: 672.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:16:13,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.05ms. Allocated memory is still 81.8MB. Free memory was 55.9MB in the beginning and 32.0MB in the end (delta: 24.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.67ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 32.0MB in the beginning and 70.2MB in the end (delta: -38.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.13ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 68.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 321.78ms. Allocated memory is still 98.6MB. Free memory was 68.1MB in the beginning and 54.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 893.34ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 50.0MB in the end (delta: 3.9MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 11.21ms. Allocated memory is still 98.6MB. Free memory was 50.0MB in the beginning and 49.4MB in the end (delta: 672.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_51b_badSink(data) [L1577] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:16:13,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4eeeec95-a145-4a38-a183-c0d298f3cf32/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample