./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c -s /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 871be16186d4378aec884efd2352a47ca4eb57bc ................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:28:39,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:28:39,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:28:39,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:28:39,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:28:39,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:28:39,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:28:39,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:28:39,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:28:39,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:28:39,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:28:39,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:28:39,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:28:39,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:28:39,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:28:39,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:28:39,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:28:39,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:28:39,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:28:39,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:28:39,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:28:39,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:28:39,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:28:39,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:28:39,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:28:39,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:28:39,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:28:39,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:28:39,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:28:39,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:28:39,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:28:39,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:28:39,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:28:39,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:28:39,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:28:39,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:28:39,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:28:39,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:28:39,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:28:39,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:28:39,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:28:39,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2019-11-26 02:28:39,980 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:28:39,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:28:39,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:28:39,991 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:28:39,991 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:28:39,991 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:28:39,991 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:28:39,991 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:28:39,992 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:28:39,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:28:39,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:28:39,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:28:39,993 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:28:39,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:28:39,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:28:39,994 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 02:28:39,994 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 02:28:39,994 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 02:28:39,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:28:39,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:28:39,995 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:28:39,995 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:28:39,995 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:28:39,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:28:39,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:28:39,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:28:39,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:28:39,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:28:39,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:28:39,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:28:39,997 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:28:39,997 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:28:39,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:28:39,998 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 871be16186d4378aec884efd2352a47ca4eb57bc [2019-11-26 02:28:40,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:28:40,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:28:40,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:28:40,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:28:40,173 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:28:40,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-26 02:28:40,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/data/6ba94f799/6bd48d3d26ae47b1bcc4bc11db24d4fd/FLAGea5a9d673 [2019-11-26 02:28:40,632 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:28:40,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion.c [2019-11-26 02:28:40,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/data/6ba94f799/6bd48d3d26ae47b1bcc4bc11db24d4fd/FLAGea5a9d673 [2019-11-26 02:28:40,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/data/6ba94f799/6bd48d3d26ae47b1bcc4bc11db24d4fd [2019-11-26 02:28:40,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:28:40,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:28:40,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:28:40,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:28:40,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:28:40,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be6a823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40, skipping insertion in model container [2019-11-26 02:28:40,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:28:40,677 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:28:40,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:28:40,795 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:28:40,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:28:40,876 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:28:40,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40 WrapperNode [2019-11-26 02:28:40,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:28:40,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:28:40,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:28:40,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:28:40,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:28:40,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:28:40,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:28:40,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:28:40,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... [2019-11-26 02:28:40,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:28:40,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:28:40,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:28:40,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:28:40,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:28:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:28:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:28:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2019-11-26 02:28:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2019-11-26 02:28:41,087 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:28:41,087 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:28:41,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:28:41 BoogieIcfgContainer [2019-11-26 02:28:41,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:28:41,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:28:41,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:28:41,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:28:41,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:28:40" (1/3) ... [2019-11-26 02:28:41,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49543a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:28:41, skipping insertion in model container [2019-11-26 02:28:41,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:28:40" (2/3) ... [2019-11-26 02:28:41,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49543a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:28:41, skipping insertion in model container [2019-11-26 02:28:41,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:28:41" (3/3) ... [2019-11-26 02:28:41,096 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91_Recursion.c [2019-11-26 02:28:41,103 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:28:41,107 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-26 02:28:41,115 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-26 02:28:41,129 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:28:41,129 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 02:28:41,130 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:28:41,130 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:28:41,130 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:28:41,130 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:28:41,130 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:28:41,130 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:28:41,142 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-26 02:28:41,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:28:41,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:28:41 BoogieIcfgContainer [2019-11-26 02:28:41,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:28:41,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:28:41,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:28:41,154 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:28:41,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:28:41" (3/4) ... [2019-11-26 02:28:41,157 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:28:41,163 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2019-11-26 02:28:41,166 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:28:41,166 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:28:41,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_592c2cc0-a429-479c-ac75-ea44d732d3ce/bin/utaipan/witness.graphml [2019-11-26 02:28:41,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:28:41,203 INFO L168 Benchmark]: Toolchain (without parser) took 547.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:28:41,204 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:28:41,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:41,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:28:41,211 INFO L168 Benchmark]: Boogie Preprocessor took 17.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:28:41,211 INFO L168 Benchmark]: RCFGBuilder took 166.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:41,212 INFO L168 Benchmark]: TraceAbstraction took 64.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:28:41,212 INFO L168 Benchmark]: Witness Printer took 47.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:28:41,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 220.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 166.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 64.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Witness Printer took 47.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...