./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d --- 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-8393723 [2022-11-19 06:39:39,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:39:39,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:39:39,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:39:39,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:39:39,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:39:39,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:39:39,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:39:39,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:39:39,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:39:39,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:39:39,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:39:39,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:39:39,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:39:39,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:39:39,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:39:39,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:39:39,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:39:39,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:39:39,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:39:39,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:39:39,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:39:39,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:39:39,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:39:39,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:39:39,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:39:39,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:39:39,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:39:39,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:39:39,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:39:39,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:39:39,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:39:39,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:39:39,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:39:39,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:39:39,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:39:39,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:39:39,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:39:39,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:39:39,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:39:39,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:39:39,294 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 06:39:39,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:39:39,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:39:39,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:39:39,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:39:39,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:39:39,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:39:39,336 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:39:39,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:39:39,336 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:39:39,336 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:39:39,338 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:39:39,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:39:39,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:39:39,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:39:39,338 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:39:39,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:39:39,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:39:39,339 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:39:39,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:39:39,340 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:39:39,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:39:39,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:39:39,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:39:39,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:39:39,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:39:39,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:39:39,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:39:39,343 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 06:39:39,343 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:39:39,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:39:39,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:39:39,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:39:39,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:39:39,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:39:39,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:39,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:39:39,345 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:39:39,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:39:39,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:39:39,346 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:39:39,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:39:39,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:39:39,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:39:39,347 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_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d [2022-11-19 06:39:39,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:39:39,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:39:39,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:39:39,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:39:39,704 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:39:39,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/recursive-simple/id_o20.c [2022-11-19 06:39:39,778 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/data/d31d0ed15/1165a35096aa451aa4430992d2d82a43/FLAG78a084bd2 [2022-11-19 06:39:40,180 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:39:40,181 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/sv-benchmarks/c/recursive-simple/id_o20.c [2022-11-19 06:39:40,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/data/d31d0ed15/1165a35096aa451aa4430992d2d82a43/FLAG78a084bd2 [2022-11-19 06:39:40,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/data/d31d0ed15/1165a35096aa451aa4430992d2d82a43 [2022-11-19 06:39:40,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:39:40,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:39:40,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:40,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:39:40,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:39:40,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7700cca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40, skipping insertion in model container [2022-11-19 06:39:40,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:39:40,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:39:40,814 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2022-11-19 06:39:40,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:40,823 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:39:40,841 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2022-11-19 06:39:40,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:39:40,854 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:39:40,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40 WrapperNode [2022-11-19 06:39:40,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:39:40,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:40,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:39:40,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:39:40,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,891 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-19 06:39:40,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:39:40,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:39:40,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:39:40,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:39:40,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:39:40,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:39:40,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:39:40,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:39:40,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (1/1) ... [2022-11-19 06:39:40,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:39:40,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:39:40,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:39:40,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:39:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:39:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:39:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:39:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:39:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-19 06:39:40,987 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-19 06:39:41,047 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:39:41,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:39:41,149 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:39:41,176 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:39:41,176 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:39:41,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:41 BoogieIcfgContainer [2022-11-19 06:39:41,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:39:41,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:39:41,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:39:41,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:39:41,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:39:40" (1/3) ... [2022-11-19 06:39:41,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b31540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:41, skipping insertion in model container [2022-11-19 06:39:41,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:39:40" (2/3) ... [2022-11-19 06:39:41,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b31540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:39:41, skipping insertion in model container [2022-11-19 06:39:41,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:41" (3/3) ... [2022-11-19 06:39:41,188 INFO L112 eAbstractionObserver]: Analyzing ICFG id_o20.c [2022-11-19 06:39:41,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:39:41,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-19 06:39:41,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b31540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:39:41, skipping insertion in model container [2022-11-19 06:39:41,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:39:41,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:39:41,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:39:41,211 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:39:41,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:39:41" (3/3) ... [2022-11-19 06:39:41,215 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:39:41,221 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-19 06:39:41,227 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-19 06:39:41,228 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 06:39:41,228 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 06:39:41,231 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:39:41,263 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:39:41,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:39:41,265 INFO L158 Benchmark]: Toolchain (without parser) took 688.10ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 74.4MB in the end (delta: 5.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,266 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 85.6MB in the beginning and 85.6MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:39:41,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.47ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 91.7MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.33ms. Allocated memory is still 115.3MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,268 INFO L158 Benchmark]: Boogie Preprocessor took 17.80ms. Allocated memory is still 115.3MB. Free memory was 90.3MB in the beginning and 89.7MB in the end (delta: 586.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:39:41,268 INFO L158 Benchmark]: RCFGBuilder took 267.26ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 79.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,269 INFO L158 Benchmark]: TraceAbstraction took 29.32ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,270 INFO L158 Benchmark]: Witness Printer took 52.53ms. Allocated memory is still 115.3MB. Free memory was 77.1MB in the beginning and 74.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:39:41,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 85.6MB in the beginning and 85.6MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.47ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 91.7MB in the end (delta: -12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.33ms. Allocated memory is still 115.3MB. Free memory was 91.7MB in the beginning and 90.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.80ms. Allocated memory is still 115.3MB. Free memory was 90.3MB in the beginning and 89.7MB in the end (delta: 586.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.26ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 79.8MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 29.32ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 77.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 52.53ms. Allocated memory is still 115.3MB. Free memory was 77.1MB in the beginning and 74.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-19 06:39:41,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622ae4e0-bf5c-4df6-901b-4fa721e19b7a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE