./Ultimate.py --spec ../../sv-benchmarks/c/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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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 0.1.23-1dbac8b [2018-10-27 04:46:51,265 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:46:51,266 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:46:51,275 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:46:51,275 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:46:51,276 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:46:51,277 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:46:51,279 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:46:51,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:46:51,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:46:51,281 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:46:51,281 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:46:51,282 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:46:51,282 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:46:51,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:46:51,285 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:46:51,285 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:46:51,286 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:46:51,288 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:46:51,289 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:46:51,290 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:46:51,291 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:46:51,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:46:51,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:46:51,294 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:46:51,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:46:51,295 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:46:51,296 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:46:51,297 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:46:51,298 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:46:51,298 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:46:51,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:46:51,298 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:46:51,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:46:51,299 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:46:51,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:46:51,301 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-10-27 04:46:51,312 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:46:51,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:46:51,313 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 04:46:51,313 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 04:46:51,313 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 04:46:51,314 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 04:46:51,314 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 04:46:51,314 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 04:46:51,315 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 04:46:51,315 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 04:46:51,315 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 04:46:51,316 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:46:51,316 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:46:51,316 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:46:51,316 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:46:51,317 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:46:51,318 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:46:51,318 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:46:51,318 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:46:51,318 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:46:51,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:46:51,318 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:46:51,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:46:51,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:46:51,319 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:46:51,319 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 04:46:51,319 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:46:51,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 04:46:51,319 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_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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 [2018-10-27 04:46:51,351 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:46:51,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:46:51,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:46:51,365 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:46:51,365 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:46:51,365 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/../../sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-10-27 04:46:51,414 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/data/828687eee/5d2b654b84e8432e8bbbf0d66798446f/FLAGf906444bf [2018-10-27 04:46:51,745 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:46:51,746 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/sv-benchmarks/c/memsafety-ext3/getNumbers1_true-valid-memsafety.c [2018-10-27 04:46:51,753 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/data/828687eee/5d2b654b84e8432e8bbbf0d66798446f/FLAGf906444bf [2018-10-27 04:46:51,767 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/data/828687eee/5d2b654b84e8432e8bbbf0d66798446f [2018-10-27 04:46:51,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:46:51,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 04:46:51,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:51,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:46:51,776 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:46:51,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:51,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549f6ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51, skipping insertion in model container [2018-10-27 04:46:51,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:51,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:46:51,799 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:46:51,941 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:51,950 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:46:51,964 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:51,978 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:46:51,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51 WrapperNode [2018-10-27 04:46:51,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:51,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:51,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 04:46:51,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 04:46:51,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:51,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:52,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:46:52,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:46:52,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:46:52,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... [2018-10-27 04:46:52,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:46:52,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:46:52,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:46:52,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:46:52,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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 [2018-10-27 04:46:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:46:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:46:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:46:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:46:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:46:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:46:52,156 INFO L130 BoogieDeclarations]: Found specification of procedure getNumbers [2018-10-27 04:46:52,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getNumbers [2018-10-27 04:46:52,544 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:46:52,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:52 BoogieIcfgContainer [2018-10-27 04:46:52,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:46:52,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:46:52,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:46:52,548 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:46:52,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:46:51" (1/3) ... [2018-10-27 04:46:52,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674ff4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:52, skipping insertion in model container [2018-10-27 04:46:52,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:51" (2/3) ... [2018-10-27 04:46:52,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674ff4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:52, skipping insertion in model container [2018-10-27 04:46:52,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:52" (3/3) ... [2018-10-27 04:46:52,551 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1_true-valid-memsafety.c [2018-10-27 04:46:52,563 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:46:52,570 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-10-27 04:46:52,582 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-10-27 04:46:52,600 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:46:52,600 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:46:52,600 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:46:52,600 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:46:52,600 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:46:52,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:46:52,601 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:46:52,601 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:46:52,612 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-10-27 04:46:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 04:46:52,621 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:52,621 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:52,623 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:52,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:52,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1842042312, now seen corresponding path program 1 times [2018-10-27 04:46:52,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:52,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:52,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:52,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:52,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:52,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:46:52,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 04:46:52,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:52,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 04:46:52,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 04:46:52,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 04:46:52,802 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2018-10-27 04:46:52,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:52,925 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-10-27 04:46:52,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 04:46:52,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-27 04:46:52,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:52,935 INFO L225 Difference]: With dead ends: 34 [2018-10-27 04:46:52,935 INFO L226 Difference]: Without dead ends: 29 [2018-10-27 04:46:52,936 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 [2018-10-27 04:46:52,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-27 04:46:52,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2018-10-27 04:46:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-27 04:46:52,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-10-27 04:46:52,964 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 10 [2018-10-27 04:46:52,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:52,965 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-10-27 04:46:52,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 04:46:52,965 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-10-27 04:46:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 04:46:52,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:52,965 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:52,966 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:52,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:52,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1268736895, now seen corresponding path program 1 times [2018-10-27 04:46:52,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:52,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:52,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:52,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:52,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:53,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:46:53,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 04:46:53,146 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:53,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 04:46:53,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 04:46:53,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 04:46:53,147 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 5 states. [2018-10-27 04:46:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:53,412 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-10-27 04:46:53,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 04:46:53,413 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-27 04:46:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:53,414 INFO L225 Difference]: With dead ends: 34 [2018-10-27 04:46:53,414 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 04:46:53,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:46:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 04:46:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2018-10-27 04:46:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-27 04:46:53,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-10-27 04:46:53,419 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 11 [2018-10-27 04:46:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:53,419 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-10-27 04:46:53,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 04:46:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-10-27 04:46:53,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 04:46:53,421 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:53,421 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:53,422 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:53,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash -329262383, now seen corresponding path program 1 times [2018-10-27 04:46:53,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:53,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:53,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:53,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:53,424 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:53,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:53,656 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:53,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-10-27 04:46:53,658 INFO L202 CegarAbsIntRunner]: [0], [1], [28], [32], [37], [39], [40], [41], [43], [49], [50], [51], [53] [2018-10-27 04:46:53,691 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:46:53,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:46:54,214 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:46:54,215 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 28 variables. [2018-10-27 04:46:54,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:54,229 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:46:54,229 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:54,229 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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 [2018-10-27 04:46:54,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:54,236 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 04:46:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:54,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:54,307 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 [2018-10-27 04:46:54,309 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 04:46:54,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:46:54,324 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-27 04:46:54,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:54,477 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:54,924 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:46:54,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2018-10-27 04:46:54,924 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:46:54,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 04:46:54,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 04:46:54,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-27 04:46:54,927 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 10 states. [2018-10-27 04:46:55,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:55,163 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-10-27 04:46:55,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 04:46:55,164 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-10-27 04:46:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:55,164 INFO L225 Difference]: With dead ends: 38 [2018-10-27 04:46:55,164 INFO L226 Difference]: Without dead ends: 38 [2018-10-27 04:46:55,165 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2018-10-27 04:46:55,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-27 04:46:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2018-10-27 04:46:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-27 04:46:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-10-27 04:46:55,167 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 16 [2018-10-27 04:46:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:55,167 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-10-27 04:46:55,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 04:46:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-10-27 04:46:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 04:46:55,168 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:55,168 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:55,168 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:55,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:55,169 INFO L82 PathProgramCache]: Analyzing trace with hash -179809090, now seen corresponding path program 1 times [2018-10-27 04:46:55,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:55,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:55,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,170 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-27 04:46:55,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 04:46:55,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 04:46:55,257 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:55,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 04:46:55,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 04:46:55,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 04:46:55,258 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 7 states. [2018-10-27 04:46:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:55,376 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-10-27 04:46:55,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 04:46:55,376 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-10-27 04:46:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:55,377 INFO L225 Difference]: With dead ends: 31 [2018-10-27 04:46:55,377 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 04:46:55,377 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-10-27 04:46:55,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 04:46:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-10-27 04:46:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-27 04:46:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-10-27 04:46:55,379 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 26 [2018-10-27 04:46:55,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:55,379 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-10-27 04:46:55,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 04:46:55,380 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-10-27 04:46:55,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-27 04:46:55,380 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:55,380 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:55,381 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:55,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:55,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1279114445, now seen corresponding path program 1 times [2018-10-27 04:46:55,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:55,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:55,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:55,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:55,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:55,603 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:55,603 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-10-27 04:46:55,603 INFO L202 CegarAbsIntRunner]: [0], [1], [6], [10], [15], [17], [18], [28], [32], [35], [37], [39], [41], [43], [47], [48], [49], [50], [51], [53], [54] [2018-10-27 04:46:55,605 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 04:46:55,605 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 04:46:55,849 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 04:46:55,850 INFO L272 AbstractInterpreter]: Visited 21 different actions 69 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 28 variables. [2018-10-27 04:46:55,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:55,896 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 04:46:55,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:55,897 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-27 04:46:55,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:55,906 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 04:46:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:55,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:55,952 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:56,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 04:46:56,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-10-27 04:46:56,018 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 04:46:56,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 04:46:56,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 04:46:56,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-10-27 04:46:56,019 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2018-10-27 04:46:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:56,039 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-10-27 04:46:56,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 04:46:56,042 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-10-27 04:46:56,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:56,043 INFO L225 Difference]: With dead ends: 37 [2018-10-27 04:46:56,043 INFO L226 Difference]: Without dead ends: 37 [2018-10-27 04:46:56,043 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-10-27 04:46:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-27 04:46:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-10-27 04:46:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-27 04:46:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-10-27 04:46:56,045 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 27 [2018-10-27 04:46:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:56,046 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-10-27 04:46:56,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 04:46:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-10-27 04:46:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-27 04:46:56,046 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:56,046 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:56,047 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr2ENSURES_VIOLATIONMEMORY_LEAK, getNumbersErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, getNumbersErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-27 04:46:56,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:56,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1591880059, now seen corresponding path program 2 times [2018-10-27 04:46:56,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:56,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:56,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:56,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:56,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 04:46:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 04:46:56,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:56,096 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 04:46:56,096 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 04:46:56,097 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 04:46:56,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 04:46:56,097 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/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 [2018-10-27 04:46:56,103 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 04:46:56,103 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 04:46:56,138 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-10-27 04:46:56,139 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 04:46:56,141 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 04:46:56,146 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 [2018-10-27 04:46:56,147 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-27 04:46:56,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 04:46:56,159 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-10-27 04:46:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-27 04:46:56,235 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 04:46:56,456 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-10-27 04:46:56,602 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-27 04:46:56,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-10-27 04:46:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-27 04:46:56,805 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 04:46:56,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6] total 16 [2018-10-27 04:46:56,805 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 04:46:56,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 04:46:56,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 04:46:56,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2018-10-27 04:46:56,806 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-10-27 04:46:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 04:46:56,993 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2018-10-27 04:46:56,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 04:46:56,993 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-10-27 04:46:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 04:46:56,994 INFO L225 Difference]: With dead ends: 35 [2018-10-27 04:46:56,994 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 04:46:56,994 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-10-27 04:46:56,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 04:46:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 04:46:56,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 04:46:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 04:46:56,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-10-27 04:46:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 04:46:56,995 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 04:46:56,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 04:46:56,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 04:46:56,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 04:46:57,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:46:57 BoogieIcfgContainer [2018-10-27 04:46:57,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:46:57,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:46:57,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:46:57,000 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:46:57,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:52" (3/4) ... [2018-10-27 04:46:57,004 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 04:46:57,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 04:46:57,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 04:46:57,010 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getNumbers [2018-10-27 04:46:57,015 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2018-10-27 04:46:57,015 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-10-27 04:46:57,015 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-10-27 04:46:57,015 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 04:46:57,052 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0f25ef5f-d87b-4cb7-b036-e66b1b2cdf7f/bin-2019/utaipan/witness.graphml [2018-10-27 04:46:57,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:46:57,053 INFO L168 Benchmark]: Toolchain (without parser) took 5282.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 244.3 MB). Free memory was 961.2 MB in the beginning and 899.7 MB in the end (delta: 61.4 MB). Peak memory consumption was 305.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,054 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:57,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.68 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.13 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 947.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,055 INFO L168 Benchmark]: Boogie Preprocessor took 25.51 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:57,055 INFO L168 Benchmark]: RCFGBuilder took 503.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 947.6 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,055 INFO L168 Benchmark]: TraceAbstraction took 4454.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 905.0 MB in the end (delta: 243.1 MB). Peak memory consumption was 309.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,056 INFO L168 Benchmark]: Witness Printer took 51.94 ms. Allocated memory is still 1.3 GB. Free memory was 905.0 MB in the beginning and 899.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:57,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.68 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.13 ms. Allocated memory is still 1.0 GB. Free memory was 950.3 MB in the beginning and 947.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.51 ms. Allocated memory is still 1.0 GB. Free memory is still 947.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 503.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 947.6 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4454.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 905.0 MB in the end (delta: 243.1 MB). Peak memory consumption was 309.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.94 ms. Allocated memory is still 1.3 GB. Free memory was 905.0 MB in the beginning and 899.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 15]: 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 5 error locations. SAFE Result, 4.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 180 SDslu, 217 SDs, 0 SdLazy, 263 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 131 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 197 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 260 ConstructedInterpolants, 9 QuantifiedInterpolants, 38881 SizeOfPredicates, 17 NumberOfNonLiveVariables, 361 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 53/111 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...