./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/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 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 23:47:04,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:47:04,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:47:04,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:47:04,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:47:04,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:47:04,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:47:04,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:47:04,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:47:04,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:47:04,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:47:04,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:47:04,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:47:04,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:47:04,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:47:04,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:47:04,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:47:04,930 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:47:04,932 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:47:04,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:47:04,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:47:04,933 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:47:04,934 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:47:04,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:47:04,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:47:04,935 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:47:04,935 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:47:04,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:47:04,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:47:04,936 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:47:04,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:47:04,937 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:47:04,937 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:47:04,937 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:47:04,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:47:04,938 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:47:04,938 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-08 23:47:04,946 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:47:04,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:47:04,947 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:47:04,947 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:47:04,947 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:47:04,947 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:47:04,947 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:47:04,947 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:47:04,947 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:47:04,948 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:47:04,948 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:47:04,948 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:47:04,949 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:47:04,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:47:04,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:47:04,950 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:47:04,950 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:47:04,950 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:47:04,950 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:47:04,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:47:04,950 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_66676304-0a21-44f7-9f3c-61297608cdbb/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 -> 60fa12f4a8e344f82de5faf31b8f2cbfbaaacd93 [2018-12-08 23:47:04,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:47:04,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:47:04,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:47:04,980 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:47:04,981 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:47:04,981 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-08 23:47:05,024 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/data/cbad08172/bfec84bc524149608752243beccc2b15/FLAG89794b61c [2018-12-08 23:47:05,434 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:47:05,435 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-12-08 23:47:05,438 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/data/cbad08172/bfec84bc524149608752243beccc2b15/FLAG89794b61c [2018-12-08 23:47:05,448 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/data/cbad08172/bfec84bc524149608752243beccc2b15 [2018-12-08 23:47:05,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:47:05,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:47:05,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:05,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:47:05,454 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:47:05,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de334ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05, skipping insertion in model container [2018-12-08 23:47:05,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:47:05,474 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:47:05,569 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:05,577 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:47:05,586 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:05,597 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:47:05,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05 WrapperNode [2018-12-08 23:47:05,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:05,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:05,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:47:05,598 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:47:05,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:05,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:47:05,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:47:05,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:47:05,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... [2018-12-08 23:47:05,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:47:05,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:47:05,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:47:05,659 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:47:05,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/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 [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 23:47:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:47:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 23:47:05,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 23:47:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 23:47:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-12-08 23:47:05,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-12-08 23:47:05,797 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:47:05,797 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 23:47:05,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:05 BoogieIcfgContainer [2018-12-08 23:47:05,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:47:05,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:47:05,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:47:05,800 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:47:05,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:47:05" (1/3) ... [2018-12-08 23:47:05,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88ebea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:47:05, skipping insertion in model container [2018-12-08 23:47:05,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:05" (2/3) ... [2018-12-08 23:47:05,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88ebea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:47:05, skipping insertion in model container [2018-12-08 23:47:05,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:05" (3/3) ... [2018-12-08 23:47:05,802 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-12-08 23:47:05,807 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:47:05,811 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-08 23:47:05,820 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-08 23:47:05,834 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:47:05,834 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 23:47:05,834 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:47:05,834 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:47:05,834 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:47:05,834 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:47:05,834 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:47:05,834 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:47:05,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-08 23:47:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 23:47:05,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:05,849 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:05,851 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:05,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:05,854 INFO L82 PathProgramCache]: Analyzing trace with hash 543879226, now seen corresponding path program 1 times [2018-12-08 23:47:05,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:05,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:05,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:05,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:05,882 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:05,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:05,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:47:05,954 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:05,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 23:47:05,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:47:05,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:47:05,966 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-12-08 23:47:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:05,983 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-08 23:47:05,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:47:05,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-08 23:47:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:05,989 INFO L225 Difference]: With dead ends: 26 [2018-12-08 23:47:05,990 INFO L226 Difference]: Without dead ends: 21 [2018-12-08 23:47:05,991 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:47:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-08 23:47:06,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-12-08 23:47:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-08 23:47:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-12-08 23:47:06,011 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 9 [2018-12-08 23:47:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:06,011 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-12-08 23:47:06,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 23:47:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-12-08 23:47:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 23:47:06,011 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:06,011 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:06,012 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:06,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash 543879227, now seen corresponding path program 1 times [2018-12-08 23:47:06,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:06,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:06,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 23:47:06,058 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:06,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:47:06,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:47:06,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:47:06,059 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 4 states. [2018-12-08 23:47:06,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:06,092 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-08 23:47:06,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 23:47:06,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-08 23:47:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:06,093 INFO L225 Difference]: With dead ends: 24 [2018-12-08 23:47:06,093 INFO L226 Difference]: Without dead ends: 24 [2018-12-08 23:47:06,094 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:47:06,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-08 23:47:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-12-08 23:47:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-08 23:47:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-08 23:47:06,096 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2018-12-08 23:47:06,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:06,096 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-08 23:47:06,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:47:06,096 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-08 23:47:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 23:47:06,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:06,097 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:06,097 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:06,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2089391026, now seen corresponding path program 1 times [2018-12-08 23:47:06,097 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:06,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,098 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,161 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:47:06,161 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-12-08 23:47:06,162 INFO L205 CegarAbsIntRunner]: [0], [1], [27], [35], [36], [38], [40], [46], [47], [48], [50] [2018-12-08 23:47:06,181 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:47:06,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:47:06,286 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:47:06,286 INFO L272 AbstractInterpreter]: Visited 11 different actions 23 times. Merged at 4 different actions 12 times. Never widened. Performed 196 root evaluator evaluations with a maximum evaluation depth of 4. Performed 196 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 20 variables. [2018-12-08 23:47:06,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,293 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:47:06,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,293 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/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 [2018-12-08 23:47:06,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,299 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:47:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:06,340 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 23:47:06,345 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:47:06,349 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:47:06,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-08 23:47:06,350 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,364 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-08 23:47:06,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-08 23:47:06,372 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,374 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,379 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:47:06,379 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-08 23:47:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:47:06,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,509 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:47:06,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2018-12-08 23:47:06,510 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:47:06,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:47:06,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:47:06,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:47:06,510 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2018-12-08 23:47:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:06,595 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-12-08 23:47:06,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:47:06,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-12-08 23:47:06,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:06,596 INFO L225 Difference]: With dead ends: 27 [2018-12-08 23:47:06,596 INFO L226 Difference]: Without dead ends: 27 [2018-12-08 23:47:06,596 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-12-08 23:47:06,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-08 23:47:06,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-08 23:47:06,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-08 23:47:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-12-08 23:47:06,598 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2018-12-08 23:47:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:06,599 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-12-08 23:47:06,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:47:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-12-08 23:47:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:47:06,599 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:06,599 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:06,599 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:06,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383288, now seen corresponding path program 1 times [2018-12-08 23:47:06,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:06,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-08 23:47:06,634 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:06,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:47:06,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:06,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:47:06,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:47:06,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:47:06,636 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2018-12-08 23:47:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:06,665 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-12-08 23:47:06,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:47:06,666 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-08 23:47:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:06,666 INFO L225 Difference]: With dead ends: 26 [2018-12-08 23:47:06,666 INFO L226 Difference]: Without dead ends: 26 [2018-12-08 23:47:06,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-08 23:47:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-08 23:47:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-08 23:47:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-08 23:47:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-12-08 23:47:06,669 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2018-12-08 23:47:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:06,670 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-12-08 23:47:06,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:47:06,670 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-08 23:47:06,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:47:06,670 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:06,670 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:06,670 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:06,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1378383287, now seen corresponding path program 1 times [2018-12-08 23:47:06,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:06,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,672 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,714 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:47:06,714 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-12-08 23:47:06,714 INFO L205 CegarAbsIntRunner]: [0], [1], [6], [14], [17], [27], [33], [35], [36], [40], [44], [45], [46], [47], [48], [50], [51] [2018-12-08 23:47:06,715 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 23:47:06,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 23:47:06,777 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 23:47:06,777 INFO L272 AbstractInterpreter]: Visited 17 different actions 36 times. Merged at 6 different actions 15 times. Widened at 1 different actions 1 times. Performed 235 root evaluator evaluations with a maximum evaluation depth of 4. Performed 235 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 23:47:06,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,780 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 23:47:06,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,780 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/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 [2018-12-08 23:47:06,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,786 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 23:47:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:47:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,870 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 23:47:06,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2018-12-08 23:47:06,870 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 23:47:06,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:47:06,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:47:06,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:47:06,871 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 7 states. [2018-12-08 23:47:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:06,887 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-12-08 23:47:06,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:47:06,887 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-08 23:47:06,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:06,888 INFO L225 Difference]: With dead ends: 31 [2018-12-08 23:47:06,888 INFO L226 Difference]: Without dead ends: 31 [2018-12-08 23:47:06,888 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-12-08 23:47:06,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-08 23:47:06,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-12-08 23:47:06,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 23:47:06,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-12-08 23:47:06,890 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2018-12-08 23:47:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:06,890 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-12-08 23:47:06,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:47:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-12-08 23:47:06,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 23:47:06,891 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:47:06,891 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 23:47:06,891 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr1REQUIRES_VIOLATION, getNumbersErr0REQUIRES_VIOLATION]=== [2018-12-08 23:47:06,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:06,891 INFO L82 PathProgramCache]: Analyzing trace with hash -149204608, now seen corresponding path program 2 times [2018-12-08 23:47:06,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:47:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:06,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:06,892 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:47:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:06,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,936 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 23:47:06,936 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-08 23:47:06,936 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-08 23:47:06,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 23:47:06,936 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/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 [2018-12-08 23:47:06,945 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 23:47:06,945 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-08 23:47:06,957 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-12-08 23:47:06,958 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 23:47:06,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:06,963 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-08 23:47:06,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:47:06,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 23:47:06,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-08 23:47:06,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,983 INFO L478 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-12-08 23:47:06,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-12-08 23:47:06,990 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,991 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 23:47:06,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 23:47:06,995 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-12-08 23:47:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-08 23:47:07,071 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 23:47:07,175 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-12-08 23:47:07,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 25 [2018-12-08 23:47:07,257 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2018-12-08 23:47:07,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-12-08 23:47:07,322 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2018-12-08 23:47:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-12-08 23:47:07,373 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-08 23:47:07,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 17 [2018-12-08 23:47:07,374 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:47:07,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 23:47:07,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 23:47:07,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-12-08 23:47:07,374 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 7 states. [2018-12-08 23:47:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:07,442 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-12-08 23:47:07,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 23:47:07,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-08 23:47:07,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:47:07,442 INFO L225 Difference]: With dead ends: 29 [2018-12-08 23:47:07,443 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:47:07,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2018-12-08 23:47:07,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:47:07,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:47:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:47:07,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:47:07,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-08 23:47:07,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:47:07,444 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:47:07,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 23:47:07,444 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:47:07,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:47:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:47:07 BoogieIcfgContainer [2018-12-08 23:47:07,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:47:07,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:47:07,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:47:07,447 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:47:07,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:05" (3/4) ... [2018-12-08 23:47:07,450 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:47:07,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 23:47:07,454 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 23:47:07,454 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-12-08 23:47:07,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-08 23:47:07,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-08 23:47:07,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 23:47:07,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 23:47:07,479 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_66676304-0a21-44f7-9f3c-61297608cdbb/bin-2019/utaipan/witness.graphml [2018-12-08 23:47:07,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:47:07,479 INFO L168 Benchmark]: Toolchain (without parser) took 2028.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -81.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,480 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:07,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.61 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:07,481 INFO L168 Benchmark]: Boogie Preprocessor took 45.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,481 INFO L168 Benchmark]: RCFGBuilder took 138.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,481 INFO L168 Benchmark]: TraceAbstraction took 1649.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,481 INFO L168 Benchmark]: Witness Printer took 31.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:07,483 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.47 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 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 15.61 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 138.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1649.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * Witness Printer took 31.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 9]: 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, 28 locations, 5 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 108 SDslu, 133 SDs, 0 SdLazy, 163 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 163 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 212 ConstructedInterpolants, 41 QuantifiedInterpolants, 32106 SizeOfPredicates, 9 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 57/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...