./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b20740fd536b5e0a884b9cfc18402c559ce28639 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b20740fd536b5e0a884b9cfc18402c559ce28639 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_84 (_ bv0 32) v_prenex_38) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:01:59,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:01:59,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:01:59,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:01:59,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:01:59,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:01:59,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:01:59,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:01:59,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:01:59,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:01:59,845 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:01:59,845 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:01:59,846 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:01:59,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:01:59,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:01:59,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:01:59,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:01:59,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:01:59,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:01:59,852 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:01:59,853 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:01:59,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:01:59,855 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:01:59,856 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:01:59,856 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:01:59,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:01:59,857 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:01:59,858 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:01:59,858 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:01:59,859 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:01:59,859 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:01:59,860 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:01:59,860 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:01:59,860 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:01:59,861 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:01:59,862 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:01:59,862 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:01:59,873 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:01:59,874 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:01:59,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:01:59,874 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:01:59,875 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:01:59,875 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:01:59,876 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:01:59,876 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:01:59,876 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:01:59,877 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:01:59,878 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:01:59,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:01:59,878 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:01:59,878 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:01:59,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:01:59,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:01:59,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:01:59,879 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:01:59,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:01:59,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:01:59,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:01:59,880 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_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/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 ! call(__VERIFIER_error())) ) 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 -> b20740fd536b5e0a884b9cfc18402c559ce28639 [2018-11-23 04:01:59,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:01:59,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:01:59,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:01:59,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:01:59,924 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:01:59,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:01:59,974 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/8c60e4181/eb2d9d4d5b324f0bad9a40f8460dd433/FLAG83b09950c [2018-11-23 04:02:00,364 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:02:00,364 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:02:00,373 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/8c60e4181/eb2d9d4d5b324f0bad9a40f8460dd433/FLAG83b09950c [2018-11-23 04:02:00,382 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/8c60e4181/eb2d9d4d5b324f0bad9a40f8460dd433 [2018-11-23 04:02:00,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:02:00,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:02:00,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:00,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:02:00,390 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:02:00,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c3ffb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00, skipping insertion in model container [2018-11-23 04:02:00,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:02:00,432 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:02:00,644 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:00,652 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:02:00,736 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:00,772 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:02:00,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00 WrapperNode [2018-11-23 04:02:00,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:00,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:00,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:02:00,774 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:02:00,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:00,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:02:00,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:02:00,797 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:02:00,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... [2018-11-23 04:02:00,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:02:00,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:02:00,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:02:00,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:02:00,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:02:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:02:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 04:02:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 04:02:00,863 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 04:02:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 04:02:00,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:02:00,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:02:00,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2018-11-23 04:02:00,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2018-11-23 04:02:00,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:02:00,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:02:01,070 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:02:01,070 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-23 04:02:01,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:01 BoogieIcfgContainer [2018-11-23 04:02:01,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:02:01,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:02:01,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:02:01,074 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:02:01,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:00" (1/3) ... [2018-11-23 04:02:01,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba0e8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:01, skipping insertion in model container [2018-11-23 04:02:01,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:00" (2/3) ... [2018-11-23 04:02:01,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba0e8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:01, skipping insertion in model container [2018-11-23 04:02:01,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:01" (3/3) ... [2018-11-23 04:02:01,077 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:02:01,085 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:02:01,090 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:02:01,099 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:02:01,118 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:02:01,118 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:02:01,118 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:02:01,118 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:02:01,118 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:02:01,118 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:02:01,118 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:02:01,118 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:02:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-23 04:02:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:02:01,136 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:01,136 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:01,139 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:01,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:01,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1958195942, now seen corresponding path program 1 times [2018-11-23 04:02:01,147 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:01,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:01,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:01,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:02:01,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:02:01,255 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:02:01,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:02:01,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:02:01,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:02:01,268 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-11-23 04:02:01,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:01,283 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2018-11-23 04:02:01,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:02:01,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 04:02:01,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:01,291 INFO L225 Difference]: With dead ends: 53 [2018-11-23 04:02:01,291 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 04:02:01,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:02:01,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 04:02:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 04:02:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 04:02:01,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-23 04:02:01,315 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2018-11-23 04:02:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:01,315 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-23 04:02:01,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:02:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-23 04:02:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:02:01,315 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:01,315 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:01,316 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:01,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:01,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1397083482, now seen corresponding path program 1 times [2018-11-23 04:02:01,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:01,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:01,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:01,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:02:01,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 04:02:01,396 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:02:01,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:02:01,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:02:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:02:01,398 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2018-11-23 04:02:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:01,438 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-23 04:02:01,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 04:02:01,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-23 04:02:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:01,439 INFO L225 Difference]: With dead ends: 42 [2018-11-23 04:02:01,439 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 04:02:01,440 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 [2018-11-23 04:02:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 04:02:01,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-23 04:02:01,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 04:02:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-23 04:02:01,444 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2018-11-23 04:02:01,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:01,444 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-23 04:02:01,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:02:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-23 04:02:01,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 04:02:01,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:01,445 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] [2018-11-23 04:02:01,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:01,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1248913962, now seen corresponding path program 1 times [2018-11-23 04:02:01,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:01,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:01,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,447 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:01,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:01,517 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:02:01,517 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-11-23 04:02:01,519 INFO L202 CegarAbsIntRunner]: [5], [6], [7], [13], [15], [22], [24], [30], [32], [36], [37], [41], [43], [47], [50], [82], [89], [90], [91], [93], [94] [2018-11-23 04:02:01,541 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:02:01,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:02:01,756 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:02:01,757 INFO L272 AbstractInterpreter]: Visited 21 different actions 36 times. Merged at 6 different actions 12 times. Never widened. Performed 380 root evaluator evaluations with a maximum evaluation depth of 3. Performed 380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 31 variables. [2018-11-23 04:02:01,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:01,770 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:02:01,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:01,770 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:01,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:01,780 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:02:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:01,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:01,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:01,838 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:01,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:02:01,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2018-11-23 04:02:01,951 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:02:01,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 04:02:01,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 04:02:01,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:02:01,952 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 6 states. [2018-11-23 04:02:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:01,988 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-23 04:02:01,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 04:02:01,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-23 04:02:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:01,989 INFO L225 Difference]: With dead ends: 45 [2018-11-23 04:02:01,989 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 04:02:01,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-23 04:02:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 04:02:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-11-23 04:02:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 04:02:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-23 04:02:01,994 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2018-11-23 04:02:01,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:01,994 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-23 04:02:01,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 04:02:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-23 04:02:01,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 04:02:01,995 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:01,995 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:01,995 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:01,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:01,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1670982618, now seen corresponding path program 2 times [2018-11-23 04:02:01,996 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:01,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:01,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:01,997 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,086 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:02:02,086 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 04:02:02,086 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 04:02:02,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,086 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:02,106 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 04:02:02,106 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-23 04:02:02,136 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 04:02:02,136 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:02:02,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:02,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,145 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,243 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:02:02,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2018-11-23 04:02:02,243 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:02:02,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:02:02,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:02:02,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-23 04:02:02,244 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 7 states. [2018-11-23 04:02:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:02,286 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2018-11-23 04:02:02,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 04:02:02,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-23 04:02:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:02,287 INFO L225 Difference]: With dead ends: 48 [2018-11-23 04:02:02,287 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 04:02:02,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 04:02:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 04:02:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 04:02:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:02:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-23 04:02:02,291 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2018-11-23 04:02:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:02,292 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-23 04:02:02,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:02:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-23 04:02:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 04:02:02,293 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:02,293 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:02,294 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:02,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:02,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1957615786, now seen corresponding path program 3 times [2018-11-23 04:02:02,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:02,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:02,296 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:02:02,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:02,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:02,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,400 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:02:02,401 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 04:02:02,401 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 04:02:02,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,401 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:02,418 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 04:02:02,419 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-23 04:02:02,444 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 04:02:02,444 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:02:02,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:02,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,453 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:02,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:02,560 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:02:02,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2018-11-23 04:02:02,560 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:02:02,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 04:02:02,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 04:02:02,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-11-23 04:02:02,561 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-11-23 04:02:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:02,604 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2018-11-23 04:02:02,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 04:02:02,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-23 04:02:02,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:02,605 INFO L225 Difference]: With dead ends: 51 [2018-11-23 04:02:02,605 INFO L226 Difference]: Without dead ends: 38 [2018-11-23 04:02:02,605 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-11-23 04:02:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-23 04:02:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-11-23 04:02:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-23 04:02:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-23 04:02:02,609 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 27 [2018-11-23 04:02:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:02,610 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-23 04:02:02,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 04:02:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-23 04:02:02,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:02:02,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:02,611 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:02,611 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:02,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:02,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1500796326, now seen corresponding path program 4 times [2018-11-23 04:02:02,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:02,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:02,612 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:02:02,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:02,612 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:02,976 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:02:02,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,976 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:02:02,976 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-23 04:02:02,976 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-23 04:02:02,977 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:02,977 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:02,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:02,992 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:02:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:03,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:03,036 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 6 treesize of output 5 [2018-11-23 04:02:03,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,041 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 04:02:03,055 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,056 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 04:02:03,057 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,063 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:18 [2018-11-23 04:02:03,090 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,090 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,091 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-11-23 04:02:03,092 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,123 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:31 [2018-11-23 04:02:03,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-11-23 04:02:03,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,163 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:37, output treesize:36 [2018-11-23 04:02:03,185 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,186 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,187 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,187 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:03,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-11-23 04:02:03,188 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,197 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,197 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:8 [2018-11-23 04:02:03,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 04:02:03,211 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 10 treesize of output 9 [2018-11-23 04:02:03,212 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,213 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,215 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-11-23 04:02:03,231 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-11-23 04:02:03,232 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 12 treesize of output 1 [2018-11-23 04:02:03,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,235 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,237 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-23 04:02:03,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 04:02:03,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 15 treesize of output 3 [2018-11-23 04:02:03,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2018-11-23 04:02:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 04:02:03,288 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:03,469 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:03,469 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 10 variables, input treesize:85, output treesize:1 [2018-11-23 04:02:03,472 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:03,477 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:17 [2018-11-23 04:02:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 04:02:03,728 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 04:02:03,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 26 [2018-11-23 04:02:03,728 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 04:02:03,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 04:02:03,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 04:02:03,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-11-23 04:02:03,729 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 20 states. [2018-11-23 04:02:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:04,029 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-11-23 04:02:04,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 04:02:04,029 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 30 [2018-11-23 04:02:04,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:04,030 INFO L225 Difference]: With dead ends: 40 [2018-11-23 04:02:04,030 INFO L226 Difference]: Without dead ends: 38 [2018-11-23 04:02:04,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 9 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2018-11-23 04:02:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-23 04:02:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-23 04:02:04,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 04:02:04,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-11-23 04:02:04,034 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 30 [2018-11-23 04:02:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:04,034 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-11-23 04:02:04,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 04:02:04,034 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-11-23 04:02:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 04:02:04,035 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:04,035 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:04,035 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:04,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:04,035 INFO L82 PathProgramCache]: Analyzing trace with hash -385024637, now seen corresponding path program 1 times [2018-11-23 04:02:04,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:02:04,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:04,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:04,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:02:04,036 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:02:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 04:02:04,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:04,576 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 04:02:04,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 34 with the following transitions: [2018-11-23 04:02:04,576 INFO L202 CegarAbsIntRunner]: [5], [6], [7], [13], [15], [22], [24], [30], [32], [36], [37], [41], [43], [47], [50], [52], [58], [82], [89], [90], [91], [93], [94] [2018-11-23 04:02:04,578 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 04:02:04,579 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 04:02:04,679 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 04:02:04,679 INFO L272 AbstractInterpreter]: Visited 23 different actions 52 times. Merged at 11 different actions 26 times. Never widened. Performed 484 root evaluator evaluations with a maximum evaluation depth of 3. Performed 484 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 3 fixpoints after 3 different actions. Largest state had 31 variables. [2018-11-23 04:02:04,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:04,681 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 04:02:04,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:04,681 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:04,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:04,702 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 04:02:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:04,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:04,745 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 6 treesize of output 5 [2018-11-23 04:02:04,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,773 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-23 04:02:04,800 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:04,801 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:04,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 04:02:04,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:04,809 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:21 [2018-11-23 04:02:04,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-23 04:02:04,840 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:04,851 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:26 [2018-11-23 04:02:04,883 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:04,884 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:04,885 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:04,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-23 04:02:04,886 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,892 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:14 [2018-11-23 04:02:04,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 04:02:04,917 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 [2018-11-23 04:02:04,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:04,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-11-23 04:02:04,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-11-23 04:02:04,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-11-23 04:02:04,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,009 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 20 treesize of output 7 [2018-11-23 04:02:05,010 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,014 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 27 [2018-11-23 04:02:05,042 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 20 treesize of output 19 [2018-11-23 04:02:05,042 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,051 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,065 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2018-11-23 04:02:05,067 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 04:02:05,071 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2018-11-23 04:02:05,071 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,074 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,077 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2018-11-23 04:02:05,093 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-23 04:02:05,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2018-11-23 04:02:05,096 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,097 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,099 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,106 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,106 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 5 variables, input treesize:80, output treesize:40 [2018-11-23 04:02:05,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 27 [2018-11-23 04:02:05,147 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 20 treesize of output 19 [2018-11-23 04:02:05,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 54 [2018-11-23 04:02:05,201 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-23 04:02:05,201 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,233 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 31 treesize of output 19 [2018-11-23 04:02:05,233 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,240 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 41 [2018-11-23 04:02:05,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2018-11-23 04:02:05,261 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2018-11-23 04:02:05,276 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:05,285 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 04:02:05,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 04:02:05,299 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:74, output treesize:88 [2018-11-23 04:02:05,455 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:05,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 116 [2018-11-23 04:02:05,464 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:05,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2018-11-23 04:02:05,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,546 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 99 [2018-11-23 04:02:05,548 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:05,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 16 treesize of output 15 [2018-11-23 04:02:05,550 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,565 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,626 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 130 [2018-11-23 04:02:05,629 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:05,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 111 treesize of output 110 [2018-11-23 04:02:05,631 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,690 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:05,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 99 treesize of output 98 [2018-11-23 04:02:05,691 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,732 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:05,800 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:05,812 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:05,872 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:05,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 87 [2018-11-23 04:02:05,876 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-11-23 04:02:05,876 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 17 treesize of output 9 [2018-11-23 04:02:05,890 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,901 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,903 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:05,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 85 [2018-11-23 04:02:05,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-23 04:02:05,907 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 22 treesize of output 13 [2018-11-23 04:02:05,923 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:05,935 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,002 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,014 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-11-23 04:02:06,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 04:02:06,077 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,085 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,126 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 66 [2018-11-23 04:02:06,128 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:06,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-23 04:02:06,129 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,139 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 62 [2018-11-23 04:02:06,145 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:06,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 29 [2018-11-23 04:02:06,146 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,155 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2018-11-23 04:02:06,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 04:02:06,188 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,194 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 38 [2018-11-23 04:02:06,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 04:02:06,199 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,205 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-23 04:02:06,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 04:02:06,239 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,245 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 10 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-11-23 04:02:06,267 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 14 variables, input treesize:224, output treesize:55 [2018-11-23 04:02:06,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 04:02:06,325 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-23 04:02:06,325 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,326 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:06,329 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2018-11-23 04:02:06,333 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 04:02:06,333 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:06,386 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,394 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,412 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,416 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,431 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,436 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,448 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,453 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:06,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-23 04:02:06,464 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:151, output treesize:101 [2018-11-23 04:02:06,803 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2018-11-23 04:02:07,026 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-11-23 04:02:07,152 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-11-23 04:02:07,176 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,176 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 32 variables, input treesize:385, output treesize:1 [2018-11-23 04:02:07,273 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,277 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,288 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,293 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-23 04:02:07,303 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:181, output treesize:145 [2018-11-23 04:02:07,382 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 154 [2018-11-23 04:02:07,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-23 04:02:07,510 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2018-11-23 04:02:07,513 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,518 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,530 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,583 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,599 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:07,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 130 [2018-11-23 04:02:07,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:02:07,672 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,674 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:02:07,675 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,683 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,714 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 106 [2018-11-23 04:02:07,718 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 94 treesize of output 93 [2018-11-23 04:02:07,719 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,763 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,764 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 109 [2018-11-23 04:02:07,780 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:07,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 91 [2018-11-23 04:02:07,867 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 63 [2018-11-23 04:02:07,869 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,886 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 78 [2018-11-23 04:02:07,898 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-11-23 04:02:07,925 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:02:07,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 78 [2018-11-23 04:02:07,970 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:07,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 58 [2018-11-23 04:02:07,972 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,977 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,989 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:07,996 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 109 [2018-11-23 04:02:08,051 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,051 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,052 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 105 [2018-11-23 04:02:08,052 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 94 [2018-11-23 04:02:08,094 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 92 [2018-11-23 04:02:08,167 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 60 [2018-11-23 04:02:08,167 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 60 [2018-11-23 04:02:08,200 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,222 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,279 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,324 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:08,333 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:08,371 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 135 [2018-11-23 04:02:08,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:02:08,378 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:02:08,380 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,388 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,425 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 116 treesize of output 124 [2018-11-23 04:02:08,431 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 112 treesize of output 111 [2018-11-23 04:02:08,431 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,482 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,484 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,486 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,493 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 134 [2018-11-23 04:02:08,493 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,579 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 107 [2018-11-23 04:02:08,619 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 72 [2018-11-23 04:02:08,621 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,644 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 82 [2018-11-23 04:02:08,653 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,686 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:02:08,750 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 94 [2018-11-23 04:02:08,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2018-11-23 04:02:08,760 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,767 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,802 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,820 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:08,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 87 [2018-11-23 04:02:08,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-23 04:02:08,874 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2018-11-23 04:02:08,875 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,879 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,885 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 87 [2018-11-23 04:02:08,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-23 04:02:08,892 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:08,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2018-11-23 04:02:08,893 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,896 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,902 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:08,949 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:08,954 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:08,955 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:08,964 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:09,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 93 [2018-11-23 04:02:09,017 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 78 [2018-11-23 04:02:09,017 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,057 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 79 [2018-11-23 04:02:09,058 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 72 [2018-11-23 04:02:09,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 04:02:09,102 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,111 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:02:09,111 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,117 INFO L267 ElimStorePlain]: Start of recursive call 52: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2018-11-23 04:02:09,177 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2018-11-23 04:02:09,177 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,186 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,211 INFO L267 ElimStorePlain]: Start of recursive call 49: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 76 [2018-11-23 04:02:09,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 04:02:09,218 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 66 [2018-11-23 04:02:09,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2018-11-23 04:02:09,240 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:02:09,247 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,249 INFO L267 ElimStorePlain]: Start of recursive call 59: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,255 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:09,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 10 dim-2 vars, End of recursive call: 12 dim-0 vars, and 4 xjuncts. [2018-11-23 04:02:09,296 INFO L202 ElimStorePlain]: Needed 61 recursive calls to eliminate 18 variables, input treesize:309, output treesize:201 [2018-11-23 04:02:27,744 WARN L180 SmtUtils]: Spent 18.36 s on a formula simplification that was a NOOP. DAG size: 80 [2018-11-23 04:02:49,969 WARN L180 SmtUtils]: Spent 22.11 s on a formula simplification that was a NOOP. DAG size: 79 [2018-11-23 04:02:49,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 57 [2018-11-23 04:02:50,002 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 11 treesize of output 10 [2018-11-23 04:02:50,002 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 73 treesize of output 95 [2018-11-23 04:02:50,453 WARN L180 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 175 [2018-11-23 04:02:50,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2018-11-23 04:02:50,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2018-11-23 04:02:50,458 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,466 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 04:02:50,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:02:50,470 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,477 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 54 [2018-11-23 04:02:50,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2018-11-23 04:02:50,483 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,493 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 55 treesize of output 83 [2018-11-23 04:02:50,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 61 [2018-11-23 04:02:50,767 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:50,823 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:50,826 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2018-11-23 04:02:50,826 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,828 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:50,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 47 [2018-11-23 04:02:50,831 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:50,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-11-23 04:02:50,972 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 64 [2018-11-23 04:02:51,014 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,053 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:51,056 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 52 [2018-11-23 04:02:51,057 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,081 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:51,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2018-11-23 04:02:51,082 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,100 INFO L267 ElimStorePlain]: Start of recursive call 11: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:51,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 04:02:51,358 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2018-11-23 04:02:51,358 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,378 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:51,382 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 48 [2018-11-23 04:02:51,382 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,403 INFO L267 ElimStorePlain]: Start of recursive call 19: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:51,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2018-11-23 04:02:51,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:02:51,726 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,733 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:51,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-11-23 04:02:52,004 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 04:02:52,004 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,005 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,006 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:52,007 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2018-11-23 04:02:52,008 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,013 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2018-11-23 04:02:52,026 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 19 [2018-11-23 04:02:52,031 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:52,032 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,033 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-23 04:02:52,034 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,050 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 04:02:52,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2018-11-23 04:02:52,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2018-11-23 04:02:52,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 14 [2018-11-23 04:02:52,332 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-11-23 04:02:52,343 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:02:52,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 10 [2018-11-23 04:02:52,343 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,349 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:52,358 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:02:52,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 36 [2018-11-23 04:02:52,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-23 04:02:52,577 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,580 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 53 [2018-11-23 04:02:52,756 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 46 [2018-11-23 04:02:52,758 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,759 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 41 [2018-11-23 04:02:52,771 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,772 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-23 04:02:52,774 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,776 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,777 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:02:52,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 14 [2018-11-23 04:02:52,781 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,789 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:52,795 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:53,012 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:53,013 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_72 0 v_DerPreprocessor_24) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 04:02:53,016 INFO L168 Benchmark]: Toolchain (without parser) took 52630.76 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 362.8 MB). Free memory was 951.1 MB in the beginning and 1.3 GB in the end (delta: -338.9 MB). Peak memory consumption was 493.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:53,016 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:02:53,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:53,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.65 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. [2018-11-23 04:02:53,017 INFO L168 Benchmark]: Boogie Preprocessor took 28.52 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. [2018-11-23 04:02:53,017 INFO L168 Benchmark]: RCFGBuilder took 244.68 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:53,017 INFO L168 Benchmark]: TraceAbstraction took 51944.25 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -187.8 MB). Peak memory consumption was 497.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:02:53,019 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.65 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 28.52 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 244.68 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: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 51944.25 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -187.8 MB). Peak memory consumption was 497.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_72 0 v_DerPreprocessor_24) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_72 0 v_DerPreprocessor_24): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 04:02:54,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:02:54,511 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:02:54,522 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:02:54,522 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:02:54,523 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:02:54,524 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:02:54,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:02:54,527 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:02:54,528 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:02:54,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:02:54,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:02:54,530 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:02:54,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:02:54,533 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:02:54,534 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:02:54,535 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:02:54,536 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:02:54,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:02:54,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:02:54,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:02:54,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:02:54,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:02:54,545 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:02:54,545 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:02:54,546 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:02:54,547 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:02:54,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:02:54,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:02:54,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:02:54,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:02:54,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:02:54,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:02:54,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:02:54,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:02:54,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:02:54,554 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 04:02:54,567 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:02:54,567 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:02:54,568 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:02:54,568 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:02:54,568 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:02:54,569 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:02:54,569 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:02:54,569 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:02:54,570 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:02:54,570 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:02:54,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:02:54,571 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:02:54,572 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 04:02:54,572 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 04:02:54,572 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:02:54,572 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:02:54,572 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:02:54,574 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:02:54,575 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:02:54,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:02:54,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:02:54,575 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:02:54,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:02:54,576 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:02:54,576 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:02:54,576 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:02:54,576 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 04:02:54,576 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:02:54,576 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 04:02:54,577 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 04:02:54,577 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/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 ! call(__VERIFIER_error())) ) 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 -> b20740fd536b5e0a884b9cfc18402c559ce28639 [2018-11-23 04:02:54,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:02:54,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:02:54,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:02:54,629 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:02:54,629 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:02:54,630 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:02:54,675 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/17e7b5958/94ce5530b6074fd5be8b47aba49f290d/FLAGdefa963d6 [2018-11-23 04:02:55,042 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:02:55,043 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:02:55,051 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/17e7b5958/94ce5530b6074fd5be8b47aba49f290d/FLAGdefa963d6 [2018-11-23 04:02:55,059 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/data/17e7b5958/94ce5530b6074fd5be8b47aba49f290d [2018-11-23 04:02:55,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:02:55,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:02:55,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:55,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:02:55,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:02:55,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f5ba8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55, skipping insertion in model container [2018-11-23 04:02:55,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:02:55,105 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:02:55,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:55,385 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:02:55,433 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:02:55,524 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:02:55,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55 WrapperNode [2018-11-23 04:02:55,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:02:55,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:55,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:02:55,525 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:02:55,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:02:55,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:02:55,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:02:55,547 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:02:55,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... [2018-11-23 04:02:55,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:02:55,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:02:55,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:02:55,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:02:55,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:02:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:02:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 04:02:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 04:02:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-23 04:02:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:02:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:02:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:02:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:02:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 04:02:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 04:02:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:02:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 04:02:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2018-11-23 04:02:55,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2018-11-23 04:02:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:02:55,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:02:55,874 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:02:55,874 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-23 04:02:55,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:55 BoogieIcfgContainer [2018-11-23 04:02:55,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:02:55,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:02:55,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:02:55,877 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:02:55,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:55" (1/3) ... [2018-11-23 04:02:55,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ccfeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:55, skipping insertion in model container [2018-11-23 04:02:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:55" (2/3) ... [2018-11-23 04:02:55,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ccfeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:55, skipping insertion in model container [2018-11-23 04:02:55,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:55" (3/3) ... [2018-11-23 04:02:55,880 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal_true-unreach-call_true-valid-memsafety.i [2018-11-23 04:02:55,887 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:02:55,894 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:02:55,904 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:02:55,924 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:02:55,925 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:02:55,925 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:02:55,925 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:02:55,925 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:02:55,925 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:02:55,925 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:02:55,925 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:02:55,925 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:02:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2018-11-23 04:02:55,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:02:55,941 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:55,941 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:55,943 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:55,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:55,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1958195942, now seen corresponding path program 1 times [2018-11-23 04:02:55,950 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:02:55,951 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:02:55,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:56,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,039 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:02:56,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:02:56,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:02:56,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:02:56,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:02:56,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:02:56,057 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2018-11-23 04:02:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:56,070 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2018-11-23 04:02:56,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:02:56,071 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 04:02:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:56,076 INFO L225 Difference]: With dead ends: 53 [2018-11-23 04:02:56,076 INFO L226 Difference]: Without dead ends: 26 [2018-11-23 04:02:56,078 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:02:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-23 04:02:56,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-23 04:02:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-23 04:02:56,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-23 04:02:56,105 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2018-11-23 04:02:56,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:56,105 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-23 04:02:56,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:02:56,106 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-23 04:02:56,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:02:56,106 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:56,106 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:56,107 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:56,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:56,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1397083482, now seen corresponding path program 1 times [2018-11-23 04:02:56,107 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:02:56,107 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:02:56,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:56,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,196 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:02:56,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:02:56,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 04:02:56,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 04:02:56,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 04:02:56,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 04:02:56,200 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2018-11-23 04:02:56,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:56,298 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-23 04:02:56,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 04:02:56,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-23 04:02:56,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:56,299 INFO L225 Difference]: With dead ends: 42 [2018-11-23 04:02:56,300 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 04:02:56,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 04:02:56,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 04:02:56,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-23 04:02:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 04:02:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-23 04:02:56,306 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2018-11-23 04:02:56,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:56,306 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-23 04:02:56,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 04:02:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-23 04:02:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 04:02:56,307 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:56,307 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] [2018-11-23 04:02:56,307 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:56,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:56,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1248913962, now seen corresponding path program 1 times [2018-11-23 04:02:56,308 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:02:56,308 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:02:56,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:56,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:56,530 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:56,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:02:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:02:56,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,656 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:56,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:56,963 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 04:02:56,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7, 7] total 16 [2018-11-23 04:02:56,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 04:02:56,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 04:02:56,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-11-23 04:02:56,964 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 16 states. [2018-11-23 04:02:57,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:57,282 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-23 04:02:57,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 04:02:57,283 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2018-11-23 04:02:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:57,284 INFO L225 Difference]: With dead ends: 45 [2018-11-23 04:02:57,284 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 04:02:57,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-11-23 04:02:57,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 04:02:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-11-23 04:02:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 04:02:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-23 04:02:57,289 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2018-11-23 04:02:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:57,289 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-23 04:02:57,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 04:02:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-23 04:02:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-23 04:02:57,290 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:57,290 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:57,290 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:57,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:57,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1670982618, now seen corresponding path program 2 times [2018-11-23 04:02:57,291 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:02:57,291 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:02:57,306 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 04:02:57,373 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 04:02:57,373 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:02:57,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:57,467 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:57,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:57,631 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:57,642 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 04:02:57,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 04:02:57,774 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:02:57,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:57,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:57,863 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:02:58,202 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 04:02:58,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 8] total 19 [2018-11-23 04:02:58,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 04:02:58,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 04:02:58,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2018-11-23 04:02:58,203 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 19 states. [2018-11-23 04:02:58,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:02:58,868 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2018-11-23 04:02:58,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 04:02:58,869 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 24 [2018-11-23 04:02:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:02:58,870 INFO L225 Difference]: With dead ends: 48 [2018-11-23 04:02:58,870 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 04:02:58,871 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2018-11-23 04:02:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 04:02:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-23 04:02:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:02:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-23 04:02:58,875 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2018-11-23 04:02:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:02:58,875 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-23 04:02:58,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 04:02:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-23 04:02:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 04:02:58,876 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:02:58,876 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:02:58,877 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:02:58,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:02:58,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1957615786, now seen corresponding path program 3 times [2018-11-23 04:02:58,877 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:02:58,877 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:02:58,891 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 04:02:58,973 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 04:02:58,973 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:02:58,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:02:59,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 04:02:59,036 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 10 treesize of output 9 [2018-11-23 04:02:59,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-11-23 04:02:59,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-11-23 04:02:59,101 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 24 treesize of output 12 [2018-11-23 04:02:59,102 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,129 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:11 [2018-11-23 04:02:59,185 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 04:02:59,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-23 04:02:59,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,190 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-11-23 04:02:59,210 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 04:02:59,211 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:02:59,577 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:59,579 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,580 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,580 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:1 [2018-11-23 04:02:59,609 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:59,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:59,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:02:59,618 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:26, output treesize:17 [2018-11-23 04:02:59,688 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2018-11-23 04:02:59,749 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 11 treesize of output 10 [2018-11-23 04:02:59,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-23 04:02:59,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 1 [2018-11-23 04:02:59,786 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,792 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 04:02:59,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-23 04:02:59,799 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,802 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:02:59,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 04:02:59,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:02:59,857 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:37, output treesize:19 [2018-11-23 04:02:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 04:02:59,924 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:02:59,925 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:02:59,944 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 04:03:00,659 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 04:03:00,659 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:03:00,663 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:03:00,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 04:03:00,681 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 10 treesize of output 9 [2018-11-23 04:03:00,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,683 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,690 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,690 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-11-23 04:03:00,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-11-23 04:03:00,726 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 24 treesize of output 12 [2018-11-23 04:03:00,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,754 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:11 [2018-11-23 04:03:00,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 04:03:00,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-23 04:03:00,805 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,806 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,807 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:00,807 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-23 04:03:00,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 04:03:00,808 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:03:01,056 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:01,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:01,066 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:01,066 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:17 [2018-11-23 04:03:01,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2018-11-23 04:03:01,198 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 11 treesize of output 10 [2018-11-23 04:03:01,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:01,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2018-11-23 04:03:01,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 1 [2018-11-23 04:03:01,244 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:01,251 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:01,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 04:03:01,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-23 04:03:01,258 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:01,261 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:01,286 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 04:03:01,317 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:03:01,317 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:19 [2018-11-23 04:03:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-23 04:03:01,356 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 04:03:01,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9] total 20 [2018-11-23 04:03:01,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 04:03:01,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 04:03:01,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2018-11-23 04:03:01,358 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 20 states. [2018-11-23 04:03:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:03:01,983 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-11-23 04:03:01,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 04:03:01,983 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 27 [2018-11-23 04:03:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:03:01,984 INFO L225 Difference]: With dead ends: 37 [2018-11-23 04:03:01,984 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 04:03:01,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2018-11-23 04:03:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 04:03:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 04:03:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 04:03:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-11-23 04:03:01,989 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 27 [2018-11-23 04:03:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:03:01,989 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-11-23 04:03:01,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 04:03:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-11-23 04:03:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:03:01,990 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:03:01,990 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:03:01,990 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:03:01,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:03:01,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2027852801, now seen corresponding path program 1 times [2018-11-23 04:03:01,991 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:03:01,991 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:03:02,004 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 04:03:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:03:02,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:03:02,111 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:03:02,112 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:03:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:03:02,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 04:03:02,296 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 04:03:02,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:03:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:03:02,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:03:02,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:03:02,423 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:03:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:03:02,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-23 04:03:02,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 9] total 22 [2018-11-23 04:03:02,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 04:03:02,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 04:03:02,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-11-23 04:03:02,878 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 22 states. [2018-11-23 04:03:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:03:04,132 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-11-23 04:03:04,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 04:03:04,132 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 30 [2018-11-23 04:03:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:03:04,133 INFO L225 Difference]: With dead ends: 55 [2018-11-23 04:03:04,133 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 04:03:04,133 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2018-11-23 04:03:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 04:03:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-11-23 04:03:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 04:03:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-11-23 04:03:04,137 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 30 [2018-11-23 04:03:04,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:03:04,137 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-11-23 04:03:04,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 04:03:04,137 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-11-23 04:03:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 04:03:04,138 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:03:04,138 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:03:04,138 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:03:04,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:03:04,138 INFO L82 PathProgramCache]: Analyzing trace with hash -385024637, now seen corresponding path program 2 times [2018-11-23 04:03:04,138 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 04:03:04,139 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8cca8456-87a4-41f9-8c0b-4ee3b5c2e065/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:03:04,151 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 04:03:04,254 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 04:03:04,254 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 04:03:04,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:03:04,276 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 6 treesize of output 5 [2018-11-23 04:03:04,276 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,286 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-11-23 04:03:04,298 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 04:03:04,300 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:04,312 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:21 [2018-11-23 04:03:04,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 04:03:04,339 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:04,353 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:26 [2018-11-23 04:03:04,375 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,376 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,377 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2018-11-23 04:03:04,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:04,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:39 [2018-11-23 04:03:04,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 04:03:04,429 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 10 treesize of output 9 [2018-11-23 04:03:04,430 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:04,453 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2018-11-23 04:03:04,494 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,495 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,496 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,498 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2018-11-23 04:03:04,499 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:56, output treesize:34 [2018-11-23 04:03:04,644 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 04:03:04,652 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 12 treesize of output 1 [2018-11-23 04:03:04,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2018-11-23 04:03:04,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-11-23 04:03:04,797 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-23 04:03:04,802 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,814 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,821 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2018-11-23 04:03:04,895 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 10 treesize of output 9 [2018-11-23 04:03:04,895 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,909 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2018-11-23 04:03:04,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 22 [2018-11-23 04:03:04,965 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:04,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-11-23 04:03:04,969 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,976 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:04,980 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,007 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 5 variables, input treesize:98, output treesize:54 [2018-11-23 04:03:05,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 51 [2018-11-23 04:03:05,093 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 12 treesize of output 1 [2018-11-23 04:03:05,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,114 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,174 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 04:03:05,177 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 [2018-11-23 04:03:05,178 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,189 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,226 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-11-23 04:03:05,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 04:03:05,233 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,247 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,275 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:05,276 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:86, output treesize:59 [2018-11-23 04:03:05,491 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:03:05,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-11-23 04:03:05,497 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 40 treesize of output 42 [2018-11-23 04:03:05,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,593 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,595 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,597 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,602 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 151 [2018-11-23 04:03:05,660 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 79 [2018-11-23 04:03:05,661 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 04:03:05,721 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2018-11-23 04:03:05,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2018-11-23 04:03:05,778 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,788 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,811 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-23 04:03:05,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-23 04:03:05,817 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,826 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 04:03:05,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2018-11-23 04:03:05,862 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2018-11-23 04:03:05,863 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 04:03:05,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 04:03:05,886 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:05,898 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:05,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:05,913 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:181, output treesize:27 [2018-11-23 04:03:05,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-23 04:03:05,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-11-23 04:03:05,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,989 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:05,990 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:33, output treesize:9 [2018-11-23 04:03:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 04:03:06,041 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 04:03:06,123 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:06,136 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:06,164 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:06,170 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:06,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:06,186 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:68, output treesize:37 [2018-11-23 04:03:12,167 WARN L180 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 120 [2018-11-23 04:03:15,269 WARN L180 SmtUtils]: Spent 3.10 s on a formula simplification that was a NOOP. DAG size: 93 [2018-11-23 04:03:18,509 WARN L180 SmtUtils]: Spent 3.24 s on a formula simplification that was a NOOP. DAG size: 99 [2018-11-23 04:03:22,077 WARN L180 SmtUtils]: Spent 3.57 s on a formula simplification that was a NOOP. DAG size: 99 [2018-11-23 04:03:22,127 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:22,127 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 15 variables, input treesize:192, output treesize:1 [2018-11-23 04:03:22,265 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:22,272 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:22,273 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:22,285 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:22,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 4 xjuncts. [2018-11-23 04:03:22,338 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:70, output treesize:246 [2018-11-23 04:03:22,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:22,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:35,430 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:35,565 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:50,928 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:50,993 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:03:58,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 92 [2018-11-23 04:03:58,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2018-11-23 04:03:58,285 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:03:58,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2018-11-23 04:03:58,298 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 04:03:58,328 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:03:58,365 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:03,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2018-11-23 04:04:03,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:03,886 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:03,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:03,892 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:03,910 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:03,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 56 [2018-11-23 04:04:03,992 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 44 treesize of output 43 [2018-11-23 04:04:03,992 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,084 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:04,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 61 [2018-11-23 04:04:04,231 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-11-23 04:04:04,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 41 [2018-11-23 04:04:04,483 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:04,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 13 [2018-11-23 04:04:04,487 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,530 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:04,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 20 [2018-11-23 04:04:04,553 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:04,595 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:04:04,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 04:04:04,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-23 04:04:04,718 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,725 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-23 04:04:04,742 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:04,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-23 04:04:04,745 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,756 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:04,787 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:04,806 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:09,728 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:09,894 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:12,118 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:12,208 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:16,042 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:16,185 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:21,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 148 [2018-11-23 04:04:21,966 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:21,981 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:22,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:22,008 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:22,110 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:22,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 136 treesize of output 144 [2018-11-23 04:04:22,397 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 132 treesize of output 131 [2018-11-23 04:04:22,398 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:22,746 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:22,747 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:22,770 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:22,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 154 [2018-11-23 04:04:22,878 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:23,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 127 [2018-11-23 04:04:23,677 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-23 04:04:23,683 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:23,689 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 92 [2018-11-23 04:04:23,689 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:23,849 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:23,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 102 [2018-11-23 04:04:23,962 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:24,286 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:04:24,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 114 [2018-11-23 04:04:25,032 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 87 [2018-11-23 04:04:25,032 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:25,125 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:25,526 INFO L267 ElimStorePlain]: Start of recursive call 33: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:25,764 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:28,524 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:28,561 INFO L267 ElimStorePlain]: Start of recursive call 41: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:28,562 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:28,611 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:30,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-23 04:04:30,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:04:30,870 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:30,877 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:30,918 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 55 [2018-11-23 04:04:30,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-23 04:04:30,923 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 46 [2018-11-23 04:04:31,013 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:31,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2018-11-23 04:04:31,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 13 treesize of output 4 [2018-11-23 04:04:31,127 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:04:31,142 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,152 INFO L267 ElimStorePlain]: Start of recursive call 50: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-23 04:04:31,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-23 04:04:31,258 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,268 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,271 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2018-11-23 04:04:31,285 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:04:31,285 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,294 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:31,351 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:33,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 81 [2018-11-23 04:04:33,607 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:33,616 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:33,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:33,630 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:33,682 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:33,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 95 [2018-11-23 04:04:33,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 82 [2018-11-23 04:04:33,883 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:34,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:34,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 98 [2018-11-23 04:04:34,210 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:34,490 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 80 [2018-11-23 04:04:34,582 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:34,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 52 [2018-11-23 04:04:34,588 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:34,670 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:34,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 62 [2018-11-23 04:04:34,730 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:34,848 INFO L267 ElimStorePlain]: Start of recursive call 63: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:04:35,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 67 [2018-11-23 04:04:35,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2018-11-23 04:04:35,157 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,180 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,223 INFO L267 ElimStorePlain]: Start of recursive call 60: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,256 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,265 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 81 [2018-11-23 04:04:35,270 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:35,276 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:35,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:35,284 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,302 INFO L267 ElimStorePlain]: Start of recursive call 69: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 83 [2018-11-23 04:04:35,372 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 04:04:35,373 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 74 [2018-11-23 04:04:35,480 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:04:35,480 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,522 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:35,529 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 49 [2018-11-23 04:04:35,529 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,551 INFO L267 ElimStorePlain]: Start of recursive call 73: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,560 INFO L267 ElimStorePlain]: Start of recursive call 71: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:35,589 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:36,792 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:36,844 INFO L267 ElimStorePlain]: Start of recursive call 76: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 04:04:37,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 164 [2018-11-23 04:04:37,391 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:37,399 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:37,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:37,408 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:37,438 INFO L267 ElimStorePlain]: Start of recursive call 79: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:37,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 138 [2018-11-23 04:04:37,660 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:37,660 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:37,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 141 [2018-11-23 04:04:37,862 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:38,253 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 126 treesize of output 125 [2018-11-23 04:04:38,254 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:38,592 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 117 [2018-11-23 04:04:38,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 04:04:38,640 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:38,685 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:38,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 92 [2018-11-23 04:04:38,693 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:38,726 INFO L267 ElimStorePlain]: Start of recursive call 84: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:39,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 123 [2018-11-23 04:04:39,261 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-23 04:04:39,267 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:39,273 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 95 [2018-11-23 04:04:39,273 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:39,383 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:39,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 110 [2018-11-23 04:04:39,502 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 4 xjuncts. [2018-11-23 04:04:39,761 INFO L267 ElimStorePlain]: Start of recursive call 87: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:04:40,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 110 [2018-11-23 04:04:40,116 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:40,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 90 [2018-11-23 04:04:40,129 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,166 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,216 INFO L267 ElimStorePlain]: Start of recursive call 81: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,243 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 95 [2018-11-23 04:04:40,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2018-11-23 04:04:40,618 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:40,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 04:04:40,628 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,665 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:40,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 107 [2018-11-23 04:04:40,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 94 [2018-11-23 04:04:40,818 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:41,074 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:41,075 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:41,087 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:41,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 117 [2018-11-23 04:04:41,193 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:41,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 90 [2018-11-23 04:04:41,596 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:41,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 65 [2018-11-23 04:04:41,630 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 2 xjuncts. [2018-11-23 04:04:41,767 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 04:04:41,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2018-11-23 04:04:41,774 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:41,897 INFO L267 ElimStorePlain]: Start of recursive call 98: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 04:04:42,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72 [2018-11-23 04:04:42,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 50 [2018-11-23 04:04:42,165 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-23 04:04:42,194 INFO L267 ElimStorePlain]: Start of recursive call 101: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:04:42,342 INFO L267 ElimStorePlain]: Start of recursive call 95: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:42,394 INFO L267 ElimStorePlain]: Start of recursive call 92: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 04:04:42,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 15 dim-2 vars, End of recursive call: 8 dim-0 vars, and 6 xjuncts. [2018-11-23 04:04:42,667 INFO L202 ElimStorePlain]: Needed 102 recursive calls to eliminate 23 variables, input treesize:417, output treesize:225 [2018-11-23 04:04:43,102 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-11-23 04:05:09,447 WARN L180 SmtUtils]: Spent 26.02 s on a formula simplification that was a NOOP. DAG size: 106 [2018-11-23 04:05:09,472 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 63 [2018-11-23 04:05:09,573 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 11 treesize of output 10 [2018-11-23 04:05:09,573 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:09,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 60 [2018-11-23 04:05:10,017 WARN L180 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2018-11-23 04:05:10,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2018-11-23 04:05:10,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:05:10,031 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,070 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 04:05:10,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:05:10,091 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,118 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 46 [2018-11-23 04:05:10,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:05:10,131 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,161 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-11-23 04:05:10,173 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:05:10,173 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,202 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 39 [2018-11-23 04:05:10,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-11-23 04:05:10,508 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,536 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 04:05:10,829 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 40 [2018-11-23 04:05:10,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2018-11-23 04:05:10,835 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 04:05:11,091 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 04:05:11,092 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_84 (_ bv0 32) v_prenex_38) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:208) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 04:05:11,094 INFO L168 Benchmark]: Toolchain (without parser) took 136033.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 258.5 MB). Free memory was 944.4 MB in the beginning and 829.2 MB in the end (delta: 115.1 MB). Peak memory consumption was 373.6 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:11,095 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 04:05:11,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:11,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.01 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:11,096 INFO L168 Benchmark]: Boogie Preprocessor took 26.29 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. [2018-11-23 04:05:11,096 INFO L168 Benchmark]: RCFGBuilder took 300.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:11,096 INFO L168 Benchmark]: TraceAbstraction took 135218.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 1.1 GB in the beginning and 829.2 MB in the end (delta: 269.5 MB). Peak memory consumption was 389.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:11,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 462.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.01 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.29 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 300.70 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 135218.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 1.1 GB in the beginning and 829.2 MB in the end (delta: 269.5 MB). Peak memory consumption was 389.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_84 (_ bv0 32) v_prenex_38) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_arrayElimCell_84 (_ bv0 32) v_prenex_38): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...