./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i --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_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/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 dc8491de7bb3fbae410adb8e5711b9887b8c9c8f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 14:26:31,397 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 14:26:31,398 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 14:26:31,404 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 14:26:31,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 14:26:31,405 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 14:26:31,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 14:26:31,406 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 14:26:31,407 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 14:26:31,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 14:26:31,408 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 14:26:31,408 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 14:26:31,409 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 14:26:31,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 14:26:31,410 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 14:26:31,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 14:26:31,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 14:26:31,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 14:26:31,412 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 14:26:31,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 14:26:31,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 14:26:31,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 14:26:31,415 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 14:26:31,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 14:26:31,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 14:26:31,416 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 14:26:31,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 14:26:31,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 14:26:31,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 14:26:31,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 14:26:31,418 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 14:26:31,418 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 14:26:31,419 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 14:26:31,419 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 14:26:31,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 14:26:31,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 14:26:31,420 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 14:26:31,427 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 14:26:31,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 14:26:31,428 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 14:26:31,428 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 14:26:31,428 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 14:26:31,429 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 14:26:31,429 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 14:26:31,429 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 14:26:31,430 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 14:26:31,430 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 14:26:31,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 14:26:31,431 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 14:26:31,431 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 14:26:31,431 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 14:26:31,431 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 14:26:31,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 14:26:31,431 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_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/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 -> dc8491de7bb3fbae410adb8e5711b9887b8c9c8f [2018-12-09 14:26:31,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 14:26:31,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 14:26:31,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 14:26:31,461 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 14:26:31,461 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 14:26:31,462 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/../../sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:26:31,507 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/data/df2ef4d65/55193248d58143e0af6c506439a657c4/FLAGa6c91561a [2018-12-09 14:26:31,903 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 14:26:31,903 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/sv-benchmarks/c/array-memsafety/array03-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:26:31,909 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/data/df2ef4d65/55193248d58143e0af6c506439a657c4/FLAGa6c91561a [2018-12-09 14:26:32,263 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/data/df2ef4d65/55193248d58143e0af6c506439a657c4 [2018-12-09 14:26:32,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 14:26:32,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 14:26:32,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 14:26:32,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 14:26:32,268 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 14:26:32,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae65c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32, skipping insertion in model container [2018-12-09 14:26:32,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 14:26:32,292 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 14:26:32,429 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:26:32,435 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 14:26:32,492 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 14:26:32,517 INFO L195 MainTranslator]: Completed translation [2018-12-09 14:26:32,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32 WrapperNode [2018-12-09 14:26:32,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 14:26:32,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 14:26:32,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 14:26:32,518 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 14:26:32,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 14:26:32,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 14:26:32,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 14:26:32,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 14:26:32,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... [2018-12-09 14:26:32,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 14:26:32,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 14:26:32,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 14:26:32,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 14:26:32,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/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 [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 14:26:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 14:26:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 14:26:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure test_fun [2018-12-09 14:26:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure test_fun [2018-12-09 14:26:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 14:26:32,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 14:26:32,733 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 14:26:32,733 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 14:26:32,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:26:32 BoogieIcfgContainer [2018-12-09 14:26:32,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 14:26:32,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 14:26:32,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 14:26:32,737 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 14:26:32,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:26:32" (1/3) ... [2018-12-09 14:26:32,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725c3435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:26:32, skipping insertion in model container [2018-12-09 14:26:32,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:26:32" (2/3) ... [2018-12-09 14:26:32,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725c3435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:26:32, skipping insertion in model container [2018-12-09 14:26:32,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:26:32" (3/3) ... [2018-12-09 14:26:32,740 INFO L112 eAbstractionObserver]: Analyzing ICFG array03-alloca_true-valid-memsafety_true-termination.i [2018-12-09 14:26:32,747 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 14:26:32,753 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-12-09 14:26:32,766 INFO L257 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2018-12-09 14:26:32,785 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 14:26:32,785 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 14:26:32,785 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 14:26:32,785 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 14:26:32,785 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 14:26:32,785 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 14:26:32,785 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 14:26:32,785 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 14:26:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-09 14:26:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 14:26:32,799 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:32,800 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:32,801 INFO L423 AbstractCegarLoop]: === Iteration 1 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:32,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:32,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1884500439, now seen corresponding path program 1 times [2018-12-09 14:26:32,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:32,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:32,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:32,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:32,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:32,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:26:32,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 14:26:32,925 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:26:32,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 14:26:32,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 14:26:32,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 14:26:32,937 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-12-09 14:26:33,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:33,011 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-12-09 14:26:33,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 14:26:33,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-12-09 14:26:33,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:33,018 INFO L225 Difference]: With dead ends: 40 [2018-12-09 14:26:33,019 INFO L226 Difference]: Without dead ends: 37 [2018-12-09 14:26:33,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 14:26:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-09 14:26:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-09 14:26:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 14:26:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-12-09 14:26:33,041 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 12 [2018-12-09 14:26:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:33,041 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-12-09 14:26:33,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 14:26:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-12-09 14:26:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-09 14:26:33,042 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:33,042 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:33,042 INFO L423 AbstractCegarLoop]: === Iteration 2 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:33,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1884500438, now seen corresponding path program 1 times [2018-12-09 14:26:33,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:33,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,043 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:26:33,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 14:26:33,100 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:26:33,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 14:26:33,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 14:26:33,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 14:26:33,101 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 6 states. [2018-12-09 14:26:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:33,201 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2018-12-09 14:26:33,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 14:26:33,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-12-09 14:26:33,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:33,203 INFO L225 Difference]: With dead ends: 54 [2018-12-09 14:26:33,204 INFO L226 Difference]: Without dead ends: 54 [2018-12-09 14:26:33,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 14:26:33,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-09 14:26:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2018-12-09 14:26:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 14:26:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2018-12-09 14:26:33,210 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 12 [2018-12-09 14:26:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:33,210 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2018-12-09 14:26:33,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 14:26:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2018-12-09 14:26:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 14:26:33,211 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:33,211 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:33,211 INFO L423 AbstractCegarLoop]: === Iteration 3 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:33,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1635327560, now seen corresponding path program 1 times [2018-12-09 14:26:33,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:33,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,212 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:26:33,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 14:26:33,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:26:33,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 14:26:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 14:26:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 14:26:33,247 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 5 states. [2018-12-09 14:26:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:33,285 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2018-12-09 14:26:33,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 14:26:33,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-12-09 14:26:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:33,286 INFO L225 Difference]: With dead ends: 54 [2018-12-09 14:26:33,286 INFO L226 Difference]: Without dead ends: 52 [2018-12-09 14:26:33,287 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 14:26:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-09 14:26:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-12-09 14:26:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 14:26:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2018-12-09 14:26:33,290 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 15 [2018-12-09 14:26:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:33,290 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2018-12-09 14:26:33,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 14:26:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2018-12-09 14:26:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 14:26:33,290 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:33,290 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:33,290 INFO L423 AbstractCegarLoop]: === Iteration 4 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:33,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1451419308, now seen corresponding path program 1 times [2018-12-09 14:26:33,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:33,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,291 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:26:33,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:26:33,357 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-09 14:26:33,358 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [11], [13], [16], [31], [36], [54], [58], [66], [69], [73], [78], [79], [80], [82] [2018-12-09 14:26:33,379 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:26:33,379 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:26:33,477 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 14:26:33,478 INFO L272 AbstractInterpreter]: Visited 18 different actions 19 times. Merged at 1 different actions 1 times. Never widened. Performed 123 root evaluator evaluations with a maximum evaluation depth of 4. Performed 123 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-12-09 14:26:33,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,484 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 14:26:33,484 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:26:33,484 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/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 [2018-12-09 14:26:33,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,492 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 14:26:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:26:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,544 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 14:26:33,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,590 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-09 14:26:33,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [8] total 13 [2018-12-09 14:26:33,590 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:26:33,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 14:26:33,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 14:26:33,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-12-09 14:26:33,591 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 6 states. [2018-12-09 14:26:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:33,646 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2018-12-09 14:26:33,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 14:26:33,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-09 14:26:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:33,647 INFO L225 Difference]: With dead ends: 75 [2018-12-09 14:26:33,647 INFO L226 Difference]: Without dead ends: 75 [2018-12-09 14:26:33,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-12-09 14:26:33,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-09 14:26:33,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-12-09 14:26:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 14:26:33,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-12-09 14:26:33,653 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 19 [2018-12-09 14:26:33,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:33,654 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-12-09 14:26:33,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 14:26:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-12-09 14:26:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 14:26:33,655 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:33,655 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:33,655 INFO L423 AbstractCegarLoop]: === Iteration 5 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:33,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,655 INFO L82 PathProgramCache]: Analyzing trace with hash -2038225322, now seen corresponding path program 1 times [2018-12-09 14:26:33,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:33,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:33,656 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:26:33,738 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 14:26:33,738 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-12-09 14:26:33,738 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [10], [11], [13], [16], [31], [36], [54], [58], [66], [71], [73], [78], [79], [80], [82] [2018-12-09 14:26:33,739 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 14:26:33,739 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 14:26:33,794 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 14:26:33,794 INFO L272 AbstractInterpreter]: Visited 18 different actions 34 times. Merged at 8 different actions 16 times. Never widened. Performed 238 root evaluator evaluations with a maximum evaluation depth of 4. Performed 238 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 21 variables. [2018-12-09 14:26:33,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:33,796 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 14:26:33,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 14:26:33,796 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/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 [2018-12-09 14:26:33,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:33,802 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 14:26:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:33,815 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 14:26:33,830 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-09 14:26:33,831 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-09 14:26:33,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 14:26:33,836 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-12-09 14:26:33,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:33,910 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 14:26:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 14:26:34,046 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 14:26:34,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2018-12-09 14:26:34,046 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 14:26:34,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 14:26:34,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 14:26:34,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-12-09 14:26:34,047 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 12 states. [2018-12-09 14:26:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:34,139 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-12-09 14:26:34,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 14:26:34,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2018-12-09 14:26:34,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:34,140 INFO L225 Difference]: With dead ends: 66 [2018-12-09 14:26:34,140 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 14:26:34,140 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-12-09 14:26:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 14:26:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2018-12-09 14:26:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 14:26:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-12-09 14:26:34,145 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 19 [2018-12-09 14:26:34,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:34,146 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-12-09 14:26:34,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 14:26:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-12-09 14:26:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 14:26:34,146 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 14:26:34,147 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 14:26:34,147 INFO L423 AbstractCegarLoop]: === Iteration 6 === [test_funErr10REQUIRES_VIOLATION, test_funErr11REQUIRES_VIOLATION, test_funErr0REQUIRES_VIOLATION, test_funErr1REQUIRES_VIOLATION, test_funErr12REQUIRES_VIOLATION, test_funErr13REQUIRES_VIOLATION, test_funErr2REQUIRES_VIOLATION, test_funErr3REQUIRES_VIOLATION, test_funErr4REQUIRES_VIOLATION, test_funErr5REQUIRES_VIOLATION, test_funErr6REQUIRES_VIOLATION, test_funErr7REQUIRES_VIOLATION, test_funErr8REQUIRES_VIOLATION, test_funErr9REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-12-09 14:26:34,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 14:26:34,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1797140914, now seen corresponding path program 1 times [2018-12-09 14:26:34,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 14:26:34,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:34,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 14:26:34,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 14:26:34,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 14:26:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 14:26:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 14:26:34,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 14:26:34,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 14:26:34,185 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 14:26:34,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 14:26:34,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 14:26:34,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 14:26:34,186 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 4 states. [2018-12-09 14:26:34,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 14:26:34,221 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2018-12-09 14:26:34,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 14:26:34,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-12-09 14:26:34,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 14:26:34,222 INFO L225 Difference]: With dead ends: 51 [2018-12-09 14:26:34,222 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 14:26:34,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 14:26:34,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 14:26:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 14:26:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 14:26:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 14:26:34,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-09 14:26:34,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 14:26:34,223 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 14:26:34,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 14:26:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 14:26:34,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 14:26:34,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:26:34 BoogieIcfgContainer [2018-12-09 14:26:34,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 14:26:34,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 14:26:34,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 14:26:34,226 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 14:26:34,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:26:32" (3/4) ... [2018-12-09 14:26:34,229 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 14:26:34,232 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 14:26:34,232 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test_fun [2018-12-09 14:26:34,233 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 14:26:34,235 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-09 14:26:34,235 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 14:26:34,235 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 14:26:34,266 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6ff57e9f-b017-4f7d-83d3-9240e51fb6ad/bin-2019/utaipan/witness.graphml [2018-12-09 14:26:34,266 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 14:26:34,267 INFO L168 Benchmark]: Toolchain (without parser) took 2000.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.3 MB in the beginning and 823.0 MB in the end (delta: 128.3 MB). Peak memory consumption was 249.4 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,268 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:26:34,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 14:26:34,269 INFO L168 Benchmark]: Boogie Preprocessor took 16.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,269 INFO L168 Benchmark]: RCFGBuilder took 180.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,269 INFO L168 Benchmark]: TraceAbstraction took 1491.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.4 MB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,270 INFO L168 Benchmark]: Witness Printer took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 826.4 MB in the beginning and 823.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 14:26:34,272 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 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1491.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.4 MB in the end (delta: 253.3 MB). Peak memory consumption was 253.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.56 ms. Allocated memory is still 1.2 GB. Free memory was 826.4 MB in the beginning and 823.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 551]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 558]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 15 error locations. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 161 SDtfs, 375 SDslu, 354 SDs, 0 SdLazy, 361 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=4, 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, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 165 ConstructedInterpolants, 19 QuantifiedInterpolants, 20763 SizeOfPredicates, 11 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 8/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...