./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-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_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/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 65401fe061f89bb729dffabf74050dfab9fe7d77 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:25:01,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:25:01,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:25:01,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:25:01,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:25:01,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:25:01,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:25:01,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:25:01,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:25:01,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:25:01,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:25:01,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:25:01,744 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:25:01,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:25:01,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:25:01,746 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:25:01,747 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:25:01,748 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:25:01,749 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:25:01,750 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:25:01,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:25:01,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:25:01,752 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:25:01,752 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:25:01,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:25:01,753 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:25:01,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:25:01,754 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:25:01,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:25:01,755 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:25:01,755 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:25:01,756 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:25:01,756 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:25:01,756 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:25:01,757 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:25:01,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:25:01,757 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-09 13:25:01,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:25:01,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:25:01,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:25:01,766 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:25:01,766 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 13:25:01,766 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 13:25:01,767 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 13:25:01,768 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 13:25:01,768 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 13:25:01,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:25:01,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:25:01,768 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 13:25:01,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:25:01,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:25:01,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:25:01,770 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:25:01,770 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 13:25:01,771 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:25:01,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:25:01,771 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_0623ef60-37ea-4290-bf73-bbdcb7fe4593/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 -> 65401fe061f89bb729dffabf74050dfab9fe7d77 [2018-12-09 13:25:01,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:25:01,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:25:01,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:25:01,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:25:01,801 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:25:01,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/../../sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-12-09 13:25:01,839 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/data/dec0d46fd/9aa659b4d5a94c5681dc315ee8643095/FLAGb3a575928 [2018-12-09 13:25:02,255 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:25:02,255 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/sv-benchmarks/c/array-memsafety/java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-12-09 13:25:02,261 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/data/dec0d46fd/9aa659b4d5a94c5681dc315ee8643095/FLAGb3a575928 [2018-12-09 13:25:02,269 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/data/dec0d46fd/9aa659b4d5a94c5681dc315ee8643095 [2018-12-09 13:25:02,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:25:02,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:25:02,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:25:02,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:25:02,274 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:25:02,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89db293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02, skipping insertion in model container [2018-12-09 13:25:02,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:25:02,296 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:25:02,435 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:25:02,441 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:25:02,507 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:25:02,533 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:25:02,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02 WrapperNode [2018-12-09 13:25:02,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:25:02,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:25:02,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:25:02,534 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:25:02,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:25:02,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:25:02,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:25:02,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:25:02,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... [2018-12-09 13:25:02,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:25:02,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:25:02,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:25:02,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:25:02,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/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 13:25:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 13:25:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 13:25:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 13:25:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 13:25:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 13:25:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 13:25:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 13:25:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure sort [2018-12-09 13:25:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sort [2018-12-09 13:25:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 13:25:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:25:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:25:02,761 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:25:02,761 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 13:25:02,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:02 BoogieIcfgContainer [2018-12-09 13:25:02,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:25:02,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:25:02,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:25:02,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:25:02,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:25:02" (1/3) ... [2018-12-09 13:25:02,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cda2783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:25:02, skipping insertion in model container [2018-12-09 13:25:02,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:02" (2/3) ... [2018-12-09 13:25:02,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cda2783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:25:02, skipping insertion in model container [2018-12-09 13:25:02,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:02" (3/3) ... [2018-12-09 13:25:02,766 INFO L112 eAbstractionObserver]: Analyzing ICFG java_BubbleSort-alloca_true-valid-memsafety_true-termination.i [2018-12-09 13:25:02,772 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:25:02,776 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-12-09 13:25:02,787 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-12-09 13:25:02,802 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:25:02,802 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-09 13:25:02,802 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:25:02,803 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:25:02,803 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:25:02,803 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:25:02,803 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:25:02,803 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:25:02,812 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-09 13:25:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 13:25:02,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:02,818 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:02,819 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:02,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1916905168, now seen corresponding path program 1 times [2018-12-09 13:25:02,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:02,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:02,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:02,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:02,854 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:02,942 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 13:25:02,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:02,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 13:25:02,944 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:02,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 13:25:02,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 13:25:02,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 13:25:02,956 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 5 states. [2018-12-09 13:25:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,017 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-12-09 13:25:03,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 13:25:03,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-12-09 13:25:03,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,024 INFO L225 Difference]: With dead ends: 37 [2018-12-09 13:25:03,024 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 13:25:03,025 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 13:25:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 13:25:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 13:25:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 13:25:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 13:25:03,046 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 13 [2018-12-09 13:25:03,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,046 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 13:25:03,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 13:25:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 13:25:03,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 13:25:03,047 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,047 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,047 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1916905169, now seen corresponding path program 1 times [2018-12-09 13:25:03,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,048 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,094 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 13:25:03,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:03,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:25:03,095 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:03,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 13:25:03,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 13:25:03,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:25:03,096 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-12-09 13:25:03,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,118 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2018-12-09 13:25:03,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 13:25:03,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-12-09 13:25:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,119 INFO L225 Difference]: With dead ends: 43 [2018-12-09 13:25:03,119 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 13:25:03,120 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:25:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 13:25:03,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-12-09 13:25:03,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-12-09 13:25:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-12-09 13:25:03,123 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-12-09 13:25:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,123 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-12-09 13:25:03,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 13:25:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-12-09 13:25:03,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 13:25:03,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,124 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,124 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,124 INFO L82 PathProgramCache]: Analyzing trace with hash -603054765, now seen corresponding path program 1 times [2018-12-09 13:25:03,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,125 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,172 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 13:25:03,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:03,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:25:03,173 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:03,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 13:25:03,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 13:25:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:25:03,174 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 7 states. [2018-12-09 13:25:03,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,251 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2018-12-09 13:25:03,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 13:25:03,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-09 13:25:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,253 INFO L225 Difference]: With dead ends: 58 [2018-12-09 13:25:03,254 INFO L226 Difference]: Without dead ends: 58 [2018-12-09 13:25:03,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-12-09 13:25:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-12-09 13:25:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 48. [2018-12-09 13:25:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 13:25:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2018-12-09 13:25:03,257 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 13 [2018-12-09 13:25:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,258 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2018-12-09 13:25:03,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 13:25:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2018-12-09 13:25:03,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 13:25:03,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,258 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,258 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1514828554, now seen corresponding path program 1 times [2018-12-09 13:25:03,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,260 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,320 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 13:25:03,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:03,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 13:25:03,321 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:03,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 13:25:03,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 13:25:03,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 13:25:03,321 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 7 states. [2018-12-09 13:25:03,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,485 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2018-12-09 13:25:03,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 13:25:03,485 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-12-09 13:25:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,486 INFO L225 Difference]: With dead ends: 88 [2018-12-09 13:25:03,486 INFO L226 Difference]: Without dead ends: 88 [2018-12-09 13:25:03,486 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 13:25:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-12-09 13:25:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 74. [2018-12-09 13:25:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-09 13:25:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2018-12-09 13:25:03,491 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 14 [2018-12-09 13:25:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,491 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2018-12-09 13:25:03,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 13:25:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2018-12-09 13:25:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 13:25:03,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,492 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,492 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,492 INFO L82 PathProgramCache]: Analyzing trace with hash -395869964, now seen corresponding path program 1 times [2018-12-09 13:25:03,492 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,493 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,524 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 13:25:03,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:03,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:25:03,524 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:03,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 13:25:03,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 13:25:03,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:25:03,525 INFO L87 Difference]: Start difference. First operand 74 states and 89 transitions. Second operand 4 states. [2018-12-09 13:25:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,559 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2018-12-09 13:25:03,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 13:25:03,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-12-09 13:25:03,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,561 INFO L225 Difference]: With dead ends: 73 [2018-12-09 13:25:03,561 INFO L226 Difference]: Without dead ends: 63 [2018-12-09 13:25:03,561 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 13:25:03,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-12-09 13:25:03,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-12-09 13:25:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-09 13:25:03,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-12-09 13:25:03,565 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 15 [2018-12-09 13:25:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,565 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-12-09 13:25:03,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 13:25:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-12-09 13:25:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 13:25:03,566 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,566 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,566 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,566 INFO L82 PathProgramCache]: Analyzing trace with hash -2053556775, now seen corresponding path program 1 times [2018-12-09 13:25:03,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,567 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,602 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 13:25:03,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:03,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 13:25:03,603 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 13:25:03,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 13:25:03,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 13:25:03,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 13:25:03,604 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 5 states. [2018-12-09 13:25:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:03,642 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2018-12-09 13:25:03,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 13:25:03,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-12-09 13:25:03,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:03,643 INFO L225 Difference]: With dead ends: 73 [2018-12-09 13:25:03,643 INFO L226 Difference]: Without dead ends: 73 [2018-12-09 13:25:03,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-12-09 13:25:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-09 13:25:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 42. [2018-12-09 13:25:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 13:25:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-12-09 13:25:03,646 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2018-12-09 13:25:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:03,646 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-12-09 13:25:03,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 13:25:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-12-09 13:25:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 13:25:03,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:03,647 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:03,647 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ENSURES_VIOLATIONMEMORY_LEAK, sortErr8REQUIRES_VIOLATION, sortErr3REQUIRES_VIOLATION, sortErr2REQUIRES_VIOLATION, sortErr7REQUIRES_VIOLATION, sortErr6REQUIRES_VIOLATION, sortErr1REQUIRES_VIOLATION, sortErr0REQUIRES_VIOLATION, sortErr11REQUIRES_VIOLATION, sortErr10REQUIRES_VIOLATION, sortErr5REQUIRES_VIOLATION, sortErr4REQUIRES_VIOLATION, sortErr9REQUIRES_VIOLATION]=== [2018-12-09 13:25:03,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,647 INFO L82 PathProgramCache]: Analyzing trace with hash 102064036, now seen corresponding path program 1 times [2018-12-09 13:25:03,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 13:25:03,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:03,648 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 13:25:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:25:03,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:25:03,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 13:25:03,694 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-12-09 13:25:03,695 INFO L205 CegarAbsIntRunner]: [0], [1], [5], [10], [12], [17], [25], [31], [33], [34], [37], [39], [58], [60], [64], [69], [70], [71], [73] [2018-12-09 13:25:03,717 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 13:25:03,717 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 13:25:03,871 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 13:25:03,872 INFO L272 AbstractInterpreter]: Visited 19 different actions 54 times. Merged at 9 different actions 31 times. Widened at 1 different actions 2 times. Performed 338 root evaluator evaluations with a maximum evaluation depth of 5. Performed 338 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 6 fixpoints after 2 different actions. Largest state had 22 variables. [2018-12-09 13:25:03,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:03,877 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 13:25:03,878 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 13:25:03,878 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/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 13:25:03,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:03,884 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 13:25:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:03,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 13:25:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:25:03,939 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 13:25:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:25:03,978 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 13:25:03,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2018-12-09 13:25:03,978 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 13:25:03,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 13:25:03,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 13:25:03,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-12-09 13:25:03,979 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 12 states. [2018-12-09 13:25:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:04,249 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2018-12-09 13:25:04,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-09 13:25:04,250 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-12-09 13:25:04,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:04,250 INFO L225 Difference]: With dead ends: 89 [2018-12-09 13:25:04,250 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 13:25:04,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2018-12-09 13:25:04,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 13:25:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 13:25:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 13:25:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 13:25:04,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-09 13:25:04,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:04,251 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 13:25:04,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 13:25:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 13:25:04,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:25:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:25:04 BoogieIcfgContainer [2018-12-09 13:25:04,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:25:04,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:25:04,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:25:04,255 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:25:04,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:02" (3/4) ... [2018-12-09 13:25:04,257 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:25:04,260 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 13:25:04,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 13:25:04,261 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sort [2018-12-09 13:25:04,263 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 13:25:04,263 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 13:25:04,263 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 13:25:04,290 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0623ef60-37ea-4290-bf73-bbdcb7fe4593/bin-2019/utaipan/witness.graphml [2018-12-09 13:25:04,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:25:04,291 INFO L168 Benchmark]: Toolchain (without parser) took 2020.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 953.5 MB in the beginning and 849.2 MB in the end (delta: 104.2 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:04,292 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:25:04,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:04,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:25:04,292 INFO L168 Benchmark]: Boogie Preprocessor took 16.42 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 13:25:04,292 INFO L168 Benchmark]: RCFGBuilder took 193.61 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:04,293 INFO L168 Benchmark]: TraceAbstraction took 1492.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.2 MB in the end (delta: 264.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:04,293 INFO L168 Benchmark]: Witness Printer took 35.69 ms. Allocated memory is still 1.2 GB. Free memory is still 849.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:25:04,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 261.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 193.61 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1492.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.2 MB in the end (delta: 264.9 MB). Peak memory consumption was 264.9 MB. Max. memory is 11.5 GB. * Witness Printer took 35.69 ms. Allocated memory is still 1.2 GB. Free memory is still 849.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 549]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: 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: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: 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: 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: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 13 error locations. SAFE Result, 1.4s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 536 SDslu, 336 SDs, 0 SdLazy, 446 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 58 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 8876 SizeOfPredicates, 5 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 17/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...