./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/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 32bit --witnessprinter.graph.data.programhash c8f17cf5334c3a5b079beafc57a2e2bffaea721f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:05:21,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:05:21,454 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:05:21,462 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:05:21,462 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:05:21,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:05:21,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:05:21,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:05:21,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:05:21,466 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:05:21,467 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:05:21,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:05:21,468 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:05:21,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:05:21,469 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:05:21,470 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:05:21,470 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:05:21,471 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:05:21,473 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:05:21,474 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:05:21,474 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:05:21,475 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:05:21,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:05:21,477 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:05:21,477 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:05:21,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:05:21,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:05:21,479 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:05:21,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:05:21,480 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:05:21,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:05:21,481 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:05:21,481 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:05:21,481 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:05:21,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:05:21,482 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:05:21,482 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-11-10 06:05:21,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:05:21,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:05:21,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:05:21,493 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 06:05:21,493 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 06:05:21,493 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 06:05:21,493 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 06:05:21,494 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 06:05:21,494 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 06:05:21,494 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 06:05:21,494 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 06:05:21,494 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:05:21,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:05:21,495 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:05:21,496 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:05:21,496 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:05:21,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 06:05:21,497 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:05:21,498 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:05:21,498 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8f17cf5334c3a5b079beafc57a2e2bffaea721f [2018-11-10 06:05:21,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:05:21,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:05:21,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:05:21,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:05:21,535 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:05:21,536 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-10 06:05:21,585 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/data/7aea323d0/c9a46529a0bb47a8b33a1cdfd767944b/FLAGf7093c1cc [2018-11-10 06:05:21,897 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:05:21,897 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/sv-benchmarks/c/memsafety-ext3/getNumbers3_true-valid-memsafety.c [2018-11-10 06:05:21,901 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/data/7aea323d0/c9a46529a0bb47a8b33a1cdfd767944b/FLAGf7093c1cc [2018-11-10 06:05:21,909 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/data/7aea323d0/c9a46529a0bb47a8b33a1cdfd767944b [2018-11-10 06:05:21,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:05:21,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:05:21,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:05:21,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:05:21,915 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:05:21,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:21" (1/1) ... [2018-11-10 06:05:21,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49481402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:21, skipping insertion in model container [2018-11-10 06:05:21,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:05:21" (1/1) ... [2018-11-10 06:05:21,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:05:21,936 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:05:22,023 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:05:22,030 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:05:22,039 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:05:22,052 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:05:22,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22 WrapperNode [2018-11-10 06:05:22,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:05:22,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:05:22,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:05:22,053 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:05:22,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:05:22,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:05:22,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:05:22,079 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:05:22,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... [2018-11-10 06:05:22,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:05:22,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:05:22,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:05:22,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:05:22,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/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 [2018-11-10 06:05:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:05:22,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:05:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:05:22,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:05:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:05:22,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:05:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-11-10 06:05:22,188 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-11-10 06:05:22,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:05:22,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:22 BoogieIcfgContainer [2018-11-10 06:05:22,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:05:22,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:05:22,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:05:22,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:05:22,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:05:21" (1/3) ... [2018-11-10 06:05:22,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e521d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:22, skipping insertion in model container [2018-11-10 06:05:22,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:05:22" (2/3) ... [2018-11-10 06:05:22,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e521d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:05:22, skipping insertion in model container [2018-11-10 06:05:22,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:22" (3/3) ... [2018-11-10 06:05:22,410 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3_true-valid-memsafety.c [2018-11-10 06:05:22,417 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:05:22,422 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-11-10 06:05:22,431 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-11-10 06:05:22,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:05:22,447 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-10 06:05:22,447 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:05:22,447 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:05:22,447 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:05:22,447 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:05:22,447 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:05:22,448 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:05:22,456 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-10 06:05:22,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 06:05:22,464 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:22,464 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:22,466 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:22,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:22,471 INFO L82 PathProgramCache]: Analyzing trace with hash -376627576, now seen corresponding path program 1 times [2018-11-10 06:05:22,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:22,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:22,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:22,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:22,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 06:05:22,602 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:22,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:05:22,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:05:22,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:05:22,620 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-11-10 06:05:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:22,682 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-11-10 06:05:22,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:05:22,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 06:05:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:22,692 INFO L225 Difference]: With dead ends: 30 [2018-11-10 06:05:22,692 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 06:05:22,693 INFO L605 BasicCegarLoop]: 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 [2018-11-10 06:05:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 06:05:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-11-10 06:05:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 06:05:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-11-10 06:05:22,714 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 10 [2018-11-10 06:05:22,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:22,714 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-11-10 06:05:22,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:05:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-11-10 06:05:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 06:05:22,715 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:22,715 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:22,715 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:22,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:22,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1209447088, now seen corresponding path program 1 times [2018-11-10 06:05:22,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:22,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:22,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,716 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:22,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:05:22,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:05:22,795 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:22,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 06:05:22,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 06:05:22,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-10 06:05:22,796 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 5 states. [2018-11-10 06:05:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:22,886 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-10 06:05:22,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 06:05:22,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 06:05:22,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:22,887 INFO L225 Difference]: With dead ends: 26 [2018-11-10 06:05:22,887 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 06:05:22,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-10 06:05:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 06:05:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-10 06:05:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 06:05:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-11-10 06:05:22,891 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2018-11-10 06:05:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:22,891 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-11-10 06:05:22,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 06:05:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-11-10 06:05:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 06:05:22,892 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:22,892 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:22,892 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:22,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:22,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1139078641, now seen corresponding path program 1 times [2018-11-10 06:05:22,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:22,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:22,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:22,895 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:22,995 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:22,995 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:22,996 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-10 06:05:22,997 INFO L202 CegarAbsIntRunner]: [0], [1], [13], [17], [22], [24], [25], [26], [28], [34], [35], [36], [38] [2018-11-10 06:05:23,030 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:05:23,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:05:23,354 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 06:05:23,355 INFO L272 AbstractInterpreter]: Visited 13 different actions 61 times. Merged at 6 different actions 48 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-10 06:05:23,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:23,363 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 06:05:23,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:23,363 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:05:23,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:23,371 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 06:05:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:23,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:05:23,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:05:23,422 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:05:23,427 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:05:23,427 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-11-10 06:05:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:23,488 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:05:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:23,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 06:05:23,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2018-11-10 06:05:23,592 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 06:05:23,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 06:05:23,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 06:05:23,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-11-10 06:05:23,593 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 10 states. [2018-11-10 06:05:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:23,765 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-11-10 06:05:23,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 06:05:23,766 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-11-10 06:05:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:23,767 INFO L225 Difference]: With dead ends: 35 [2018-11-10 06:05:23,767 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 06:05:23,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-11-10 06:05:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 06:05:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-11-10 06:05:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 06:05:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-10 06:05:23,769 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2018-11-10 06:05:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:23,770 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-10 06:05:23,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 06:05:23,770 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-10 06:05:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 06:05:23,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:23,770 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:23,771 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:23,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:23,771 INFO L82 PathProgramCache]: Analyzing trace with hash -894489702, now seen corresponding path program 1 times [2018-11-10 06:05:23,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:23,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:23,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:23,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:23,772 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-10 06:05:23,839 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:23,839 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:23,839 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-11-10 06:05:23,839 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [7], [13], [17], [20], [22], [24], [26], [28], [32], [33], [34], [35], [36], [38], [39] [2018-11-10 06:05:23,841 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:05:23,842 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:05:24,028 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 06:05:24,028 INFO L272 AbstractInterpreter]: Visited 18 different actions 66 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-10 06:05:24,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:24,042 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 06:05:24,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:24,043 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:05:24,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:24,051 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 06:05:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:24,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:05:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,115 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:05:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,199 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 06:05:24,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 14 [2018-11-10 06:05:24,199 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 06:05:24,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 06:05:24,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 06:05:24,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-11-10 06:05:24,200 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-11-10 06:05:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:24,293 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-10 06:05:24,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 06:05:24,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-11-10 06:05:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:24,294 INFO L225 Difference]: With dead ends: 34 [2018-11-10 06:05:24,294 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 06:05:24,294 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-11-10 06:05:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 06:05:24,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2018-11-10 06:05:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 06:05:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-10 06:05:24,296 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 24 [2018-11-10 06:05:24,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:24,297 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-10 06:05:24,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 06:05:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-10 06:05:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 06:05:24,297 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:24,297 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:24,298 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:24,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:24,298 INFO L82 PathProgramCache]: Analyzing trace with hash 67716431, now seen corresponding path program 1 times [2018-11-10 06:05:24,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:24,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:24,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:24,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:24,299 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:24,349 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:24,349 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-11-10 06:05:24,350 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [8], [9], [13], [17], [20], [22], [24], [26], [28], [32], [33], [34], [35], [36], [38], [39] [2018-11-10 06:05:24,351 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 06:05:24,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 06:05:24,461 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 06:05:24,461 INFO L272 AbstractInterpreter]: Visited 19 different actions 67 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-10 06:05:24,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:24,462 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 06:05:24,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:24,463 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:05:24,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:24,476 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 06:05:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:24,495 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:05:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,503 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:05:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,551 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-10 06:05:24,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-11-10 06:05:24,551 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 06:05:24,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 06:05:24,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 06:05:24,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:05:24,552 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-10 06:05:24,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:24,564 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-11-10 06:05:24,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 06:05:24,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-10 06:05:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:24,564 INFO L225 Difference]: With dead ends: 39 [2018-11-10 06:05:24,565 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 06:05:24,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-10 06:05:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 06:05:24,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 06:05:24,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 06:05:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-11-10 06:05:24,567 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 30 [2018-11-10 06:05:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:24,567 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-11-10 06:05:24,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 06:05:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-11-10 06:05:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 06:05:24,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:05:24,568 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:05:24,568 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-11-10 06:05:24,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:05:24,569 INFO L82 PathProgramCache]: Analyzing trace with hash -726822802, now seen corresponding path program 2 times [2018-11-10 06:05:24,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 06:05:24,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:24,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:05:24,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:05:24,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 06:05:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:05:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:05:24,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:24,625 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 06:05:24,625 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-10 06:05:24,625 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 06:05:24,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 06:05:24,625 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 06:05:24,636 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 06:05:24,636 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-10 06:05:24,648 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-11-10 06:05:24,648 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 06:05:24,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:05:24,654 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-10 06:05:24,654 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 06:05:24,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 06:05:24,658 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-11-10 06:05:24,714 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-10 06:05:24,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 06:05:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-11-10 06:05:24,821 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-10 06:05:24,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 15 [2018-11-10 06:05:24,822 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 06:05:24,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 06:05:24,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 06:05:24,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-10 06:05:24,823 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 6 states. [2018-11-10 06:05:24,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:05:24,858 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-10 06:05:24,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 06:05:24,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-11-10 06:05:24,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:05:24,859 INFO L225 Difference]: With dead ends: 35 [2018-11-10 06:05:24,859 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 06:05:24,859 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-11-10 06:05:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 06:05:24,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 06:05:24,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 06:05:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 06:05:24,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-11-10 06:05:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:05:24,859 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:05:24,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 06:05:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:05:24,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 06:05:24,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:05:24 BoogieIcfgContainer [2018-11-10 06:05:24,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:05:24,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:05:24,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:05:24,863 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:05:24,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:05:22" (3/4) ... [2018-11-10 06:05:24,865 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 06:05:24,869 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 06:05:24,869 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 06:05:24,869 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-11-10 06:05:24,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2018-11-10 06:05:24,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-10 06:05:24,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-10 06:05:24,872 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 06:05:24,897 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bf7322d3-46c8-44b2-94ee-31d6fdc6d123/bin-2019/utaipan/witness.graphml [2018-11-10 06:05:24,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:05:24,898 INFO L168 Benchmark]: Toolchain (without parser) took 2986.52 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 224.9 MB). Free memory was 952.7 MB in the beginning and 906.1 MB in the end (delta: 46.6 MB). Peak memory consumption was 271.5 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:24,899 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:05:24,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.18 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:24,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.40 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:24,899 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:05:24,900 INFO L168 Benchmark]: RCFGBuilder took 307.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:24,900 INFO L168 Benchmark]: TraceAbstraction took 2457.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 906.1 MB in the end (delta: 226.0 MB). Peak memory consumption was 295.2 MB. Max. memory is 11.5 GB. [2018-11-10 06:05:24,900 INFO L168 Benchmark]: Witness Printer took 34.43 ms. Allocated memory is still 1.3 GB. Free memory is still 906.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:05:24,902 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.18 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.40 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 307.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2457.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 69.2 MB). Free memory was 1.1 GB in the beginning and 906.1 MB in the end (delta: 226.0 MB). Peak memory consumption was 295.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.43 ms. Allocated memory is still 1.3 GB. Free memory is still 906.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 5 error locations. SAFE Result, 2.4s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 SDtfs, 173 SDslu, 199 SDs, 0 SdLazy, 245 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 258 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 20 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 231 NumberOfCodeBlocks, 211 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 37332 SizeOfPredicates, 17 NumberOfNonLiveVariables, 469 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 85/216 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...