./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 0e11c684160c36739b32009d12dfc0b40146d3c7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 0e11c684160c36739b32009d12dfc0b40146d3c7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_78 term size 24 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:04:01,556 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:04:01,557 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:04:01,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:04:01,564 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:04:01,564 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:04:01,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:04:01,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:04:01,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:04:01,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:04:01,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:04:01,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:04:01,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:04:01,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:04:01,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:04:01,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:04:01,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:04:01,573 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:04:01,574 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:04:01,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:04:01,575 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:04:01,576 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:04:01,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:04:01,578 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:04:01,578 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:04:01,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:04:01,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:04:01,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:04:01,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:04:01,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:04:01,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:04:01,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:04:01,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:04:01,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:04:01,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:04:01,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:04:01,583 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:04:01,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:04:01,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:04:01,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:04:01,592 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:04:01,592 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:04:01,592 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:04:01,592 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:04:01,592 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:04:01,592 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:04:01,593 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:04:01,593 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:04:01,593 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:04:01,593 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:04:01,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:04:01,594 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:04:01,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:04:01,595 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:04:01,595 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:04:01,595 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:04:01,595 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:04:01,595 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:04:01,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:04:01,596 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:04:01,597 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_4946dce6-285d-4105-b316-8978776e92af/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 -> 0e11c684160c36739b32009d12dfc0b40146d3c7 [2018-11-18 14:04:01,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:04:01,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:04:01,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:04:01,630 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:04:01,630 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:04:01,631 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:01,666 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/895adb147/ebbf0602f66a4c7d82b0bb0aefc361cf/FLAG5795a89d8 [2018-11-18 14:04:02,048 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:04:02,049 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:02,060 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/895adb147/ebbf0602f66a4c7d82b0bb0aefc361cf/FLAG5795a89d8 [2018-11-18 14:04:02,426 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/895adb147/ebbf0602f66a4c7d82b0bb0aefc361cf [2018-11-18 14:04:02,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:04:02,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:04:02,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:02,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:04:02,433 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:04:02,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507016b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02, skipping insertion in model container [2018-11-18 14:04:02,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:04:02,472 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:04:02,730 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:02,737 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:04:02,823 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:02,902 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:04:02,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02 WrapperNode [2018-11-18 14:04:02,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:02,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:04:02,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:04:02,904 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:04:02,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:04:02,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:04:02,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:04:02,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:04:02,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... [2018-11-18 14:04:02,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:04:02,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:04:02,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:04:02,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:04:02,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:03,021 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 14:04:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 14:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 14:04:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 14:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 14:04:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 14:04:03,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:04:03,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 14:04:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 14:04:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 14:04:03,023 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 14:04:03,023 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 14:04:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 14:04:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 14:04:03,024 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 14:04:03,024 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 14:04:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 14:04:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:04:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:04:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 14:04:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 14:04:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 14:04:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 14:04:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 14:04:03,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:04:03,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:04:03,417 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:04:03,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:03 BoogieIcfgContainer [2018-11-18 14:04:03,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:04:03,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:04:03,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:04:03,421 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:04:03,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:02" (1/3) ... [2018-11-18 14:04:03,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6f2554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:03, skipping insertion in model container [2018-11-18 14:04:03,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:02" (2/3) ... [2018-11-18 14:04:03,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6f2554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:03, skipping insertion in model container [2018-11-18 14:04:03,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:03" (3/3) ... [2018-11-18 14:04:03,424 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:03,432 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:04:03,438 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:04:03,452 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:04:03,477 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:04:03,478 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:04:03,478 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:04:03,478 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:04:03,478 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:04:03,478 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:04:03,478 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:04:03,478 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:04:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-11-18 14:04:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 14:04:03,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:03,499 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:03,501 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:03,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:03,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1217746547, now seen corresponding path program 1 times [2018-11-18 14:04:03,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:03,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:03,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,548 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:03,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:03,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:04:03,611 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:03,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:04:03,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:04:03,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:03,626 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-11-18 14:04:03,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:03,658 INFO L93 Difference]: Finished difference Result 300 states and 471 transitions. [2018-11-18 14:04:03,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:04:03,659 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 14:04:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:03,666 INFO L225 Difference]: With dead ends: 300 [2018-11-18 14:04:03,666 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 14:04:03,670 INFO L604 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 [2018-11-18 14:04:03,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 14:04:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-11-18 14:04:03,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-18 14:04:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2018-11-18 14:04:03,702 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 15 [2018-11-18 14:04:03,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:03,702 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2018-11-18 14:04:03,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:04:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2018-11-18 14:04:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 14:04:03,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:03,704 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:03,704 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:03,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:03,704 INFO L82 PathProgramCache]: Analyzing trace with hash -483005412, now seen corresponding path program 1 times [2018-11-18 14:04:03,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:03,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:03,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:03,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:03,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:04:03,781 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:03,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:04:03,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:04:03,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:04:03,783 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand 5 states. [2018-11-18 14:04:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:03,893 INFO L93 Difference]: Finished difference Result 141 states and 161 transitions. [2018-11-18 14:04:03,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:04:03,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-18 14:04:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:03,895 INFO L225 Difference]: With dead ends: 141 [2018-11-18 14:04:03,896 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 14:04:03,896 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:04:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 14:04:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 14:04:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 14:04:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2018-11-18 14:04:03,907 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 35 [2018-11-18 14:04:03,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:03,909 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2018-11-18 14:04:03,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:04:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2018-11-18 14:04:03,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 14:04:03,910 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:03,910 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:03,910 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:03,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:03,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1326671008, now seen corresponding path program 1 times [2018-11-18 14:04:03,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:03,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:03,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:03,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:04,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:04,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-18 14:04:04,131 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:04,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 14:04:04,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 14:04:04,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:04:04,132 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand 14 states. [2018-11-18 14:04:05,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:05,161 INFO L93 Difference]: Finished difference Result 250 states and 292 transitions. [2018-11-18 14:04:05,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 14:04:05,161 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2018-11-18 14:04:05,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:05,164 INFO L225 Difference]: With dead ends: 250 [2018-11-18 14:04:05,164 INFO L226 Difference]: Without dead ends: 244 [2018-11-18 14:04:05,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2018-11-18 14:04:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-11-18 14:04:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 216. [2018-11-18 14:04:05,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 14:04:05,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 254 transitions. [2018-11-18 14:04:05,189 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 254 transitions. Word has length 38 [2018-11-18 14:04:05,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:05,189 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 254 transitions. [2018-11-18 14:04:05,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 14:04:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 254 transitions. [2018-11-18 14:04:05,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 14:04:05,190 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:05,190 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:05,190 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:05,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:05,191 INFO L82 PathProgramCache]: Analyzing trace with hash -804495318, now seen corresponding path program 1 times [2018-11-18 14:04:05,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:05,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:05,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:05,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:05,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:05,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:05,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 14:04:05,702 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:05,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 14:04:05,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 14:04:05,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:04:05,703 INFO L87 Difference]: Start difference. First operand 216 states and 254 transitions. Second operand 17 states. [2018-11-18 14:04:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:07,715 INFO L93 Difference]: Finished difference Result 381 states and 457 transitions. [2018-11-18 14:04:07,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 14:04:07,716 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 41 [2018-11-18 14:04:07,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:07,718 INFO L225 Difference]: With dead ends: 381 [2018-11-18 14:04:07,718 INFO L226 Difference]: Without dead ends: 378 [2018-11-18 14:04:07,718 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 14:04:07,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-11-18 14:04:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 348. [2018-11-18 14:04:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 420 transitions. [2018-11-18 14:04:07,756 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 420 transitions. Word has length 41 [2018-11-18 14:04:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:07,757 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 420 transitions. [2018-11-18 14:04:07,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 14:04:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 420 transitions. [2018-11-18 14:04:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 14:04:07,758 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:07,758 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:07,758 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:07,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1704057548, now seen corresponding path program 1 times [2018-11-18 14:04:07,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:07,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:07,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:07,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:07,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:08,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:08,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 14:04:08,193 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:08,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 14:04:08,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 14:04:08,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:04:08,194 INFO L87 Difference]: Start difference. First operand 348 states and 420 transitions. Second operand 17 states. [2018-11-18 14:04:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:09,728 INFO L93 Difference]: Finished difference Result 380 states and 455 transitions. [2018-11-18 14:04:09,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 14:04:09,729 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2018-11-18 14:04:09,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:09,731 INFO L225 Difference]: With dead ends: 380 [2018-11-18 14:04:09,731 INFO L226 Difference]: Without dead ends: 377 [2018-11-18 14:04:09,732 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=887, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 14:04:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2018-11-18 14:04:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 348. [2018-11-18 14:04:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:09,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 419 transitions. [2018-11-18 14:04:09,764 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 419 transitions. Word has length 45 [2018-11-18 14:04:09,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:09,764 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 419 transitions. [2018-11-18 14:04:09,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 14:04:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 419 transitions. [2018-11-18 14:04:09,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 14:04:09,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:09,765 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:09,765 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:09,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:09,766 INFO L82 PathProgramCache]: Analyzing trace with hash 730040884, now seen corresponding path program 1 times [2018-11-18 14:04:09,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:09,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:09,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:09,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:09,768 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:10,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:10,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 14:04:10,262 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:10,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:04:10,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:04:10,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:04:10,262 INFO L87 Difference]: Start difference. First operand 348 states and 419 transitions. Second operand 18 states. [2018-11-18 14:04:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:12,460 INFO L93 Difference]: Finished difference Result 379 states and 453 transitions. [2018-11-18 14:04:12,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-18 14:04:12,461 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2018-11-18 14:04:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:12,463 INFO L225 Difference]: With dead ends: 379 [2018-11-18 14:04:12,463 INFO L226 Difference]: Without dead ends: 376 [2018-11-18 14:04:12,464 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2018-11-18 14:04:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-11-18 14:04:12,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 348. [2018-11-18 14:04:12,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 418 transitions. [2018-11-18 14:04:12,488 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 418 transitions. Word has length 48 [2018-11-18 14:04:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:12,488 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 418 transitions. [2018-11-18 14:04:12,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:04:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 418 transitions. [2018-11-18 14:04:12,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 14:04:12,489 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:12,490 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:12,490 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:12,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:12,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1256067134, now seen corresponding path program 1 times [2018-11-18 14:04:12,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:12,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:12,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:12,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:12,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:13,164 WARN L180 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 75 [2018-11-18 14:04:13,629 WARN L180 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 73 [2018-11-18 14:04:13,785 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2018-11-18 14:04:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:14,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:14,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 14:04:14,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:14,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:04:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:04:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:04:14,072 INFO L87 Difference]: Start difference. First operand 348 states and 418 transitions. Second operand 18 states. [2018-11-18 14:04:15,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:15,710 INFO L93 Difference]: Finished difference Result 373 states and 445 transitions. [2018-11-18 14:04:15,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-18 14:04:15,711 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2018-11-18 14:04:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:15,712 INFO L225 Difference]: With dead ends: 373 [2018-11-18 14:04:15,713 INFO L226 Difference]: Without dead ends: 370 [2018-11-18 14:04:15,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=227, Invalid=829, Unknown=0, NotChecked=0, Total=1056 [2018-11-18 14:04:15,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-11-18 14:04:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 348. [2018-11-18 14:04:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 417 transitions. [2018-11-18 14:04:15,747 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 417 transitions. Word has length 51 [2018-11-18 14:04:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:15,748 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 417 transitions. [2018-11-18 14:04:15,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:04:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 417 transitions. [2018-11-18 14:04:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 14:04:15,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:15,749 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:15,749 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:15,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:15,749 INFO L82 PathProgramCache]: Analyzing trace with hash 755229644, now seen corresponding path program 1 times [2018-11-18 14:04:15,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:15,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:15,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:15,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:15,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:16,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:16,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-18 14:04:16,264 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:16,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 14:04:16,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 14:04:16,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:04:16,265 INFO L87 Difference]: Start difference. First operand 348 states and 417 transitions. Second operand 18 states. [2018-11-18 14:04:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:18,137 INFO L93 Difference]: Finished difference Result 377 states and 449 transitions. [2018-11-18 14:04:18,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-18 14:04:18,137 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2018-11-18 14:04:18,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:18,139 INFO L225 Difference]: With dead ends: 377 [2018-11-18 14:04:18,139 INFO L226 Difference]: Without dead ends: 374 [2018-11-18 14:04:18,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=214, Invalid=1118, Unknown=0, NotChecked=0, Total=1332 [2018-11-18 14:04:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-11-18 14:04:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 348. [2018-11-18 14:04:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 416 transitions. [2018-11-18 14:04:18,168 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 416 transitions. Word has length 55 [2018-11-18 14:04:18,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:18,168 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 416 transitions. [2018-11-18 14:04:18,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 14:04:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 416 transitions. [2018-11-18 14:04:18,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 14:04:18,169 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:18,169 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:18,170 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:18,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:18,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1850540936, now seen corresponding path program 1 times [2018-11-18 14:04:18,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:18,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:18,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:18,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:18,171 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:18,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:18,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:18,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-18 14:04:18,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:04:18,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 14:04:18,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 14:04:18,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:04:18,656 INFO L87 Difference]: Start difference. First operand 348 states and 416 transitions. Second operand 17 states. [2018-11-18 14:04:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:20,339 INFO L93 Difference]: Finished difference Result 371 states and 441 transitions. [2018-11-18 14:04:20,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 14:04:20,339 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-11-18 14:04:20,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:20,340 INFO L225 Difference]: With dead ends: 371 [2018-11-18 14:04:20,340 INFO L226 Difference]: Without dead ends: 368 [2018-11-18 14:04:20,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2018-11-18 14:04:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-11-18 14:04:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 348. [2018-11-18 14:04:20,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-11-18 14:04:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 415 transitions. [2018-11-18 14:04:20,365 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 415 transitions. Word has length 58 [2018-11-18 14:04:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:20,366 INFO L480 AbstractCegarLoop]: Abstraction has 348 states and 415 transitions. [2018-11-18 14:04:20,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 14:04:20,366 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 415 transitions. [2018-11-18 14:04:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 14:04:20,366 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:20,366 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:20,367 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:20,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:20,367 INFO L82 PathProgramCache]: Analyzing trace with hash 399203020, now seen corresponding path program 1 times [2018-11-18 14:04:20,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:04:20,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:20,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:20,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:04:20,368 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:04:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:04:21,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:04:21,205 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:04:21,206 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 63 with the following transitions: [2018-11-18 14:04:21,207 INFO L202 CegarAbsIntRunner]: [0], [1], [56], [58], [60], [63], [65], [69], [86], [89], [90], [96], [100], [106], [110], [118], [124], [128], [136], [139], [424], [426], [427], [431], [436], [438], [443], [447], [453], [462], [463], [464], [472], [473], [482], [512], [513], [514], [515], [516], [518], [519] [2018-11-18 14:04:21,227 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:04:21,228 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:04:21,339 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:04:21,340 INFO L272 AbstractInterpreter]: Visited 42 different actions 42 times. Never merged. Never widened. Performed 280 root evaluator evaluations with a maximum evaluation depth of 6. Performed 280 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-11-18 14:04:21,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:21,347 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:04:21,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:04:21,347 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:21,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:21,357 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:04:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:21,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:21,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 14:04:21,450 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,460 INFO L477 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 14:04:21,461 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 14:04:21,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:21,493 INFO L477 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 24 treesize of output 21 [2018-11-18 14:04:21,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:04:21,497 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,498 INFO L477 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 24 treesize of output 32 [2018-11-18 14:04:21,501 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,503 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:04:21,506 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,508 INFO L477 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 23 treesize of output 26 [2018-11-18 14:04:21,508 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,513 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,518 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,521 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,524 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,541 INFO L477 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 24 treesize of output 21 [2018-11-18 14:04:21,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:04:21,548 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,548 INFO L477 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 24 treesize of output 32 [2018-11-18 14:04:21,551 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,552 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:04:21,554 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,555 INFO L477 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 23 treesize of output 26 [2018-11-18 14:04:21,555 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,560 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,564 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,567 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,572 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:21,584 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 14:04:21,641 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,642 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,642 INFO L477 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 55 treesize of output 49 [2018-11-18 14:04:21,643 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,671 INFO L477 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 53 treesize of output 48 [2018-11-18 14:04:21,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,700 INFO L477 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 48 treesize of output 44 [2018-11-18 14:04:21,702 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,703 INFO L477 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 13 treesize of output 6 [2018-11-18 14:04:21,703 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,712 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,739 INFO L477 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 32 treesize of output 28 [2018-11-18 14:04:21,741 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,742 INFO L477 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 13 treesize of output 6 [2018-11-18 14:04:21,742 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,748 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,769 INFO L477 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 45 treesize of output 41 [2018-11-18 14:04:21,771 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,771 INFO L477 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 13 treesize of output 6 [2018-11-18 14:04:21,772 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,779 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,795 INFO L477 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 25 [2018-11-18 14:04:21,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,799 INFO L477 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 13 treesize of output 6 [2018-11-18 14:04:21,799 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,804 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,813 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,813 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:109, output treesize:13 [2018-11-18 14:04:21,877 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:21,878 INFO L477 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 12 treesize of output 5 [2018-11-18 14:04:21,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:21,883 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. [2018-11-18 14:04:21,883 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:15 [2018-11-18 14:04:22,008 INFO L477 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 77 treesize of output 48 [2018-11-18 14:04:22,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 14:04:22,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,082 INFO L477 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 45 treesize of output 58 [2018-11-18 14:04:22,087 INFO L477 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 47 treesize of output 46 [2018-11-18 14:04:22,092 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:22,093 INFO L477 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 30 treesize of output 34 [2018-11-18 14:04:22,093 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,109 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,188 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:04:22,189 INFO L477 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 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 14:04:22,194 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:22,196 INFO L477 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 37 treesize of output 46 [2018-11-18 14:04:22,196 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,211 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,297 INFO L477 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 43 treesize of output 34 [2018-11-18 14:04:22,300 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:22,305 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:04:22,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 14:04:22,306 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,323 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:22,413 INFO L477 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 47 treesize of output 55 [2018-11-18 14:04:22,419 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:04:22,620 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:04:22,621 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_12 term size 24 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2018-11-18 14:04:22,623 INFO L168 Benchmark]: Toolchain (without parser) took 20194.91 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 494.4 MB). Free memory was 956.4 MB in the beginning and 914.3 MB in the end (delta: 42.1 MB). Peak memory consumption was 536.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,624 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:04:22,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,625 INFO L168 Benchmark]: Boogie Preprocessor took 38.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,625 INFO L168 Benchmark]: RCFGBuilder took 442.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,625 INFO L168 Benchmark]: TraceAbstraction took 19204.17 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 385.4 MB). Free memory was 1.0 GB in the beginning and 914.3 MB in the end (delta: 101.4 MB). Peak memory consumption was 486.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:04:22,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 473.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -115.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 442.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19204.17 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 385.4 MB). Free memory was 1.0 GB in the beginning and 914.3 MB in the end (delta: 101.4 MB). Peak memory consumption was 486.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_12 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_12 term size 24: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 14:04:24,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:04:24,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:04:24,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:04:24,067 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:04:24,068 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:04:24,068 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:04:24,069 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:04:24,070 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:04:24,071 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:04:24,072 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:04:24,072 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:04:24,072 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:04:24,073 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:04:24,074 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:04:24,075 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:04:24,075 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:04:24,077 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:04:24,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:04:24,079 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:04:24,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:04:24,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:04:24,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:04:24,083 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:04:24,083 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:04:24,084 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:04:24,084 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:04:24,085 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:04:24,085 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:04:24,087 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:04:24,087 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:04:24,087 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:04:24,088 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:04:24,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:04:24,088 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:04:24,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:04:24,089 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:04:24,100 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:04:24,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:04:24,101 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:04:24,101 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:04:24,101 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:04:24,102 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:04:24,102 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:04:24,102 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:04:24,103 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:04:24,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:04:24,104 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:04:24,104 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:04:24,105 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:04:24,105 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:04:24,105 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:04:24,105 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:04:24,105 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_4946dce6-285d-4105-b316-8978776e92af/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 -> 0e11c684160c36739b32009d12dfc0b40146d3c7 [2018-11-18 14:04:24,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:04:24,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:04:24,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:04:24,148 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:04:24,148 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:04:24,149 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:24,190 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/0f5a54b10/d63342643d0a4a6da0e3e7d7579a7230/FLAGed20bab1c [2018-11-18 14:04:24,570 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:04:24,570 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/sv-benchmarks/c/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:24,581 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/0f5a54b10/d63342643d0a4a6da0e3e7d7579a7230/FLAGed20bab1c [2018-11-18 14:04:24,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/data/0f5a54b10/d63342643d0a4a6da0e3e7d7579a7230 [2018-11-18 14:04:24,953 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:04:24,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:04:24,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:24,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:04:24,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:04:24,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:24" (1/1) ... [2018-11-18 14:04:24,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69549c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:24, skipping insertion in model container [2018-11-18 14:04:24,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:24" (1/1) ... [2018-11-18 14:04:24,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:04:25,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:04:25,336 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:25,345 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:04:25,390 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:04:25,488 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:04:25,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25 WrapperNode [2018-11-18 14:04:25,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:04:25,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:04:25,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:04:25,489 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:04:25,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:04:25,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:04:25,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:04:25,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:04:25,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... [2018-11-18 14:04:25,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:04:25,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:04:25,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:04:25,558 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:04:25,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:25,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:04:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2018-11-18 14:04:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2018-11-18 14:04:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure gl_insert [2018-11-18 14:04:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-11-18 14:04:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-11-18 14:04:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-11-18 14:04:25,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:04:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2018-11-18 14:04:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2018-11-18 14:04:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-11-18 14:04:25,592 INFO L130 BoogieDeclarations]: Found specification of procedure gl_sort [2018-11-18 14:04:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-11-18 14:04:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure gl_read [2018-11-18 14:04:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_read [2018-11-18 14:04:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:04:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 14:04:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 14:04:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-11-18 14:04:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-11-18 14:04:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2018-11-18 14:04:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2018-11-18 14:04:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:04:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:04:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 14:04:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2018-11-18 14:04:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2018-11-18 14:04:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2018-11-18 14:04:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2018-11-18 14:04:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:04:25,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:04:26,034 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:04:26,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:26 BoogieIcfgContainer [2018-11-18 14:04:26,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:04:26,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:04:26,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:04:26,037 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:04:26,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:24" (1/3) ... [2018-11-18 14:04:26,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265d4a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:26, skipping insertion in model container [2018-11-18 14:04:26,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:25" (2/3) ... [2018-11-18 14:04:26,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265d4a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:26, skipping insertion in model container [2018-11-18 14:04:26,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:26" (3/3) ... [2018-11-18 14:04:26,039 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:04:26,045 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:04:26,050 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:04:26,059 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:04:26,078 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:04:26,078 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:04:26,078 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:04:26,078 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:04:26,079 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:04:26,079 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:04:26,079 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:04:26,079 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:04:26,079 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:04:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2018-11-18 14:04:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 14:04:26,095 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:26,095 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:26,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:26,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:26,100 INFO L82 PathProgramCache]: Analyzing trace with hash -914397588, now seen corresponding path program 1 times [2018-11-18 14:04:26,102 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:04:26,103 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:26,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:26,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:26,177 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:26,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:26,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:04:26,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:04:26,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:04:26,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:26,196 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2018-11-18 14:04:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:26,232 INFO L93 Difference]: Finished difference Result 298 states and 469 transitions. [2018-11-18 14:04:26,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:04:26,233 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-11-18 14:04:26,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:26,239 INFO L225 Difference]: With dead ends: 298 [2018-11-18 14:04:26,239 INFO L226 Difference]: Without dead ends: 138 [2018-11-18 14:04:26,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:04:26,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-18 14:04:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-18 14:04:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-18 14:04:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 159 transitions. [2018-11-18 14:04:26,277 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 159 transitions. Word has length 15 [2018-11-18 14:04:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:26,277 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 159 transitions. [2018-11-18 14:04:26,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:04:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 159 transitions. [2018-11-18 14:04:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 14:04:26,278 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:26,278 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:26,278 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:26,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:26,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1731062258, now seen corresponding path program 1 times [2018-11-18 14:04:26,279 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:04:26,279 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:26,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:26,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:04:26,379 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:04:26,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:04:26,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:04:26,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:04:26,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:04:26,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:04:26,385 INFO L87 Difference]: Start difference. First operand 138 states and 159 transitions. Second operand 5 states. [2018-11-18 14:04:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:04:26,522 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2018-11-18 14:04:26,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:04:26,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-11-18 14:04:26,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:04:26,525 INFO L225 Difference]: With dead ends: 140 [2018-11-18 14:04:26,525 INFO L226 Difference]: Without dead ends: 137 [2018-11-18 14:04:26,526 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:04:26,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-11-18 14:04:26,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-11-18 14:04:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-18 14:04:26,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2018-11-18 14:04:26,540 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 34 [2018-11-18 14:04:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:04:26,542 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2018-11-18 14:04:26,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:04:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2018-11-18 14:04:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 14:04:26,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:04:26,543 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:04:26,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:04:26,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:04:26,544 INFO L82 PathProgramCache]: Analyzing trace with hash -656289715, now seen corresponding path program 1 times [2018-11-18 14:04:26,544 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:04:26,545 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:04:26,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:04:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:04:26,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:04:26,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 14:04:26,698 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:26,726 INFO L477 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 14:04:26,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 14:04:26,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:26,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:26,765 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:27 [2018-11-18 14:04:26,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:26,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:26,805 INFO L477 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 19 treesize of output 11 [2018-11-18 14:04:26,805 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:26,835 INFO L477 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 14 treesize of output 7 [2018-11-18 14:04:26,835 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:26,842 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:26,843 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:7 [2018-11-18 14:04:26,903 INFO L477 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 77 treesize of output 48 [2018-11-18 14:04:27,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 14:04:27,014 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:27,164 INFO L477 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 38 treesize of output 53 [2018-11-18 14:04:27,171 INFO L477 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 42 treesize of output 44 [2018-11-18 14:04:27,177 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:27,181 INFO L477 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 16 treesize of output 23 [2018-11-18 14:04:27,181 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:27,210 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:27,487 INFO L477 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 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-18 14:04:27,498 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:27,500 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:27,534 INFO L477 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 23 treesize of output 44 [2018-11-18 14:04:27,534 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 14:04:27,609 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:27,936 INFO L477 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 42 treesize of output 43 [2018-11-18 14:04:27,940 INFO L477 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 8 treesize of output 7 [2018-11-18 14:04:27,941 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:27,962 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:27,976 INFO L477 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 44 treesize of output 45 [2018-11-18 14:04:27,979 INFO L477 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 8 treesize of output 7 [2018-11-18 14:04:27,980 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,003 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,286 INFO L477 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 41 treesize of output 53 [2018-11-18 14:04:28,294 INFO L477 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 39 treesize of output 40 [2018-11-18 14:04:28,295 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,371 INFO L477 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 38 treesize of output 37 [2018-11-18 14:04:28,371 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,408 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,533 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:28,597 INFO L477 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 45 treesize of output 58 [2018-11-18 14:04:28,611 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:04:28,611 INFO L477 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 0 case distinctions, treesize of input 44 treesize of output 46 [2018-11-18 14:04:28,637 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:28,638 INFO L477 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 37 treesize of output 43 [2018-11-18 14:04:28,638 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,690 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:28,990 INFO L477 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 47 treesize of output 46 [2018-11-18 14:04:29,002 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:29,003 INFO L477 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 30 treesize of output 34 [2018-11-18 14:04:29,003 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:29,036 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:29,358 INFO L477 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 43 treesize of output 34 [2018-11-18 14:04:29,371 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:29,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 14:04:29,377 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:04:29,401 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:04:29,670 INFO L477 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 40 treesize of output 48 [2018-11-18 14:04:29,677 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:29,686 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:04:29,701 INFO L477 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 37 treesize of output 69 [2018-11-18 14:04:29,702 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-18 14:04:29,869 INFO L267 ElimStorePlain]: Start of recursive call 23: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:29,999 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:04:30,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:04:30,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-11-18 14:04:30,229 INFO L202 ElimStorePlain]: Needed 24 recursive calls to eliminate 4 variables, input treesize:81, output treesize:93 [2018-11-18 14:04:46,726 WARN L180 SmtUtils]: Spent 16.46 s on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2018-11-18 14:04:54,829 WARN L180 SmtUtils]: Spent 8.07 s on a formula simplification that was a NOOP. DAG size: 35 [2018-11-18 14:05:04,955 WARN L180 SmtUtils]: Spent 10.08 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-18 14:05:05,079 INFO L303 Elim1Store]: Index analysis took 118 ms [2018-11-18 14:05:05,135 INFO L477 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 81 treesize of output 90 [2018-11-18 14:05:05,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:05,751 INFO L477 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 103 [2018-11-18 14:05:05,763 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:05,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:05,968 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:05,972 INFO L303 Elim1Store]: Index analysis took 218 ms [2018-11-18 14:05:06,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 142 [2018-11-18 14:05:06,091 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 14:05:06,916 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:06,918 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:06,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 119 [2018-11-18 14:05:06,920 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:07,218 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:07,218 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:05:07,219 INFO L477 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 0 case distinctions, treesize of input 83 treesize of output 104 [2018-11-18 14:05:07,220 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:07,666 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-11-18 14:05:09,441 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:09,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 99 [2018-11-18 14:05:09,678 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:09,688 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:09,697 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:10,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 122 [2018-11-18 14:05:10,078 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 14:05:10,886 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:10,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:10,895 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:10,897 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:10,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 122 [2018-11-18 14:05:10,898 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:11,257 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:11,266 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:11,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 130 [2018-11-18 14:05:11,413 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-11-18 14:05:12,020 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:05:17,647 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:17,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 57 treesize of output 72 [2018-11-18 14:05:17,778 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:17,791 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:17,794 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:17,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:05:17,796 INFO L477 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 62 treesize of output 87 [2018-11-18 14:05:17,796 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:18,145 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:18,147 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:18,147 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:05:18,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 71 [2018-11-18 14:05:18,149 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:18,472 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:18,489 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:18,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 73 [2018-11-18 14:05:18,497 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:19,053 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:19,067 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:19,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 87 [2018-11-18 14:05:19,225 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-11-18 14:05:19,446 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 14:05:22,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 4 dim-0 vars, and 9 xjuncts. [2018-11-18 14:05:25,893 INFO L477 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 66 [2018-11-18 14:05:25,983 INFO L477 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 80 [2018-11-18 14:05:25,990 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:25,991 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:25,993 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:25,994 INFO L477 Elim1Store]: Elim1 did not use 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 103 [2018-11-18 14:05:25,994 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:05:26,106 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:05:26,229 INFO L477 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 2 case distinctions, treesize of input 66 treesize of output 113 [2018-11-18 14:05:26,230 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-18 14:05:26,348 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:05:26,770 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:05:29,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 28 dim-0 vars, and 12 xjuncts. [2018-11-18 14:05:29,728 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 7 variables, input treesize:157, output treesize:865 [2018-11-18 14:06:09,626 WARN L180 SmtUtils]: Spent 39.71 s on a formula simplification. DAG size of input: 245 DAG size of output: 54 [2018-11-18 14:06:09,651 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,658 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,659 INFO L477 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 82 treesize of output 73 [2018-11-18 14:06:09,659 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:09,939 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,943 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,946 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:09,947 INFO L477 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 93 treesize of output 84 [2018-11-18 14:06:09,947 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:10,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:10,229 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:10,230 INFO L477 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 88 treesize of output 80 [2018-11-18 14:06:10,231 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:10,412 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:10,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:10,415 INFO L477 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 77 treesize of output 69 [2018-11-18 14:06:10,415 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:10,514 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 4 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-18 14:06:10,514 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:347, output treesize:150 [2018-11-18 14:06:20,682 WARN L180 SmtUtils]: Spent 10.10 s on a formula simplification that was a NOOP. DAG size: 52 [2018-11-18 14:06:32,816 WARN L180 SmtUtils]: Spent 12.08 s on a formula simplification that was a NOOP. DAG size: 52 [2018-11-18 14:06:44,965 WARN L180 SmtUtils]: Spent 12.09 s on a formula simplification that was a NOOP. DAG size: 52 [2018-11-18 14:06:45,032 INFO L477 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 67 [2018-11-18 14:06:45,088 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,114 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,241 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,291 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,293 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,295 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,296 INFO L303 Elim1Store]: Index analysis took 261 ms [2018-11-18 14:06:45,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 77 [2018-11-18 14:06:45,297 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:45,472 INFO L477 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 51 [2018-11-18 14:06:45,473 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:45,667 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,705 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,707 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,745 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,774 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,776 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,781 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:45,781 INFO L303 Elim1Store]: Index analysis took 151 ms [2018-11-18 14:06:45,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 79 [2018-11-18 14:06:45,782 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:45,971 INFO L477 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 41 treesize of output 25 [2018-11-18 14:06:45,971 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:46,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:47,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2018-11-18 14:06:47,006 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,662 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:48,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 37 [2018-11-18 14:06:48,674 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,721 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:06:48,806 INFO L477 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 73 treesize of output 45 [2018-11-18 14:06:48,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:48,814 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:06:48,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2018-11-18 14:06:48,820 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,836 INFO L477 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 12 treesize of output 4 [2018-11-18 14:06:48,836 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,843 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,900 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:06:48,900 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:158, output treesize:4 [2018-11-18 14:06:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:06:48,976 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:06:48,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:06:48,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 14:06:48,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 14:06:48,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 14:06:48,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=172, Unknown=1, NotChecked=0, Total=210 [2018-11-18 14:06:48,978 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand 15 states. [2018-11-18 14:07:01,824 WARN L180 SmtUtils]: Spent 12.18 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2018-11-18 14:07:14,148 WARN L180 SmtUtils]: Spent 12.24 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2018-11-18 14:07:30,432 WARN L180 SmtUtils]: Spent 16.17 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2018-11-18 14:07:51,020 WARN L180 SmtUtils]: Spent 20.30 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2018-11-18 14:08:15,489 WARN L180 SmtUtils]: Spent 24.36 s on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2018-11-18 14:08:35,924 WARN L180 SmtUtils]: Spent 20.31 s on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2018-11-18 14:08:56,451 WARN L180 SmtUtils]: Spent 20.35 s on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2018-11-18 14:09:41,452 WARN L180 SmtUtils]: Spent 44.85 s on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2018-11-18 14:10:51,386 WARN L180 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 133 DAG size of output: 133 [2018-11-18 14:11:12,312 WARN L180 SmtUtils]: Spent 20.51 s on a formula simplification. DAG size of input: 76 DAG size of output: 76 [2018-11-18 14:12:24,439 WARN L180 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 136 DAG size of output: 136 [2018-11-18 14:12:52,000 WARN L180 SmtUtils]: Spent 20.35 s on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2018-11-18 14:12:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:12:53,985 INFO L93 Difference]: Finished difference Result 257 states and 304 transitions. [2018-11-18 14:12:53,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 14:12:53,986 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 37 [2018-11-18 14:12:53,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:12:53,989 INFO L225 Difference]: With dead ends: 257 [2018-11-18 14:12:53,990 INFO L226 Difference]: Without dead ends: 251 [2018-11-18 14:12:53,990 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 463.4s TimeCoverageRelationStatistics Valid=159, Invalid=710, Unknown=1, NotChecked=0, Total=870 [2018-11-18 14:12:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-18 14:12:54,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 215. [2018-11-18 14:12:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-18 14:12:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 253 transitions. [2018-11-18 14:12:54,030 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 253 transitions. Word has length 37 [2018-11-18 14:12:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:12:54,030 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 253 transitions. [2018-11-18 14:12:54,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 14:12:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 253 transitions. [2018-11-18 14:12:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 14:12:54,031 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:12:54,031 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:12:54,032 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:12:54,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:12:54,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1073322948, now seen corresponding path program 1 times [2018-11-18 14:12:54,032 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:12:54,032 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/bin-2019/utaipan/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:12:54,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:12:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:12:54,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:12:54,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 14:12:54,214 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,221 INFO L477 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 14:12:54,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 14:12:54,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:12:54,395 INFO L477 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 24 treesize of output 21 [2018-11-18 14:12:54,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:12:54,407 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,408 INFO L477 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 24 treesize of output 32 [2018-11-18 14:12:54,415 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,416 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:12:54,423 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,424 INFO L477 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 23 treesize of output 26 [2018-11-18 14:12:54,425 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,442 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,458 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,472 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,485 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,550 INFO L477 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 24 treesize of output 21 [2018-11-18 14:12:54,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:12:54,560 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,561 INFO L477 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 24 treesize of output 32 [2018-11-18 14:12:54,567 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,573 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:12:54,577 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,580 INFO L477 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 23 treesize of output 26 [2018-11-18 14:12:54,581 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,589 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,597 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,603 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,610 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,634 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:12:54,635 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 14:12:54,694 INFO L477 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 55 treesize of output 48 [2018-11-18 14:12:54,694 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,766 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,768 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,768 INFO L477 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 57 treesize of output 49 [2018-11-18 14:12:54,769 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,827 INFO L477 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 [2018-11-18 14:12:54,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,831 INFO L477 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 13 treesize of output 6 [2018-11-18 14:12:54,831 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,850 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,891 INFO L477 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 33 treesize of output 29 [2018-11-18 14:12:54,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,894 INFO L477 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 13 treesize of output 6 [2018-11-18 14:12:54,894 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,903 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,935 INFO L477 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 45 treesize of output 41 [2018-11-18 14:12:54,939 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,940 INFO L477 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 13 treesize of output 6 [2018-11-18 14:12:54,940 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,954 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,984 INFO L477 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 25 [2018-11-18 14:12:54,987 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:54,987 INFO L477 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 13 treesize of output 6 [2018-11-18 14:12:54,987 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:54,994 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:55,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:55,008 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:113, output treesize:13 [2018-11-18 14:12:55,128 INFO L477 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 77 treesize of output 48 [2018-11-18 14:12:55,304 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 14:12:55,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 14:12:55,330 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:55,602 INFO L477 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 45 treesize of output 58 [2018-11-18 14:12:55,609 INFO L477 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 47 treesize of output 46 [2018-11-18 14:12:55,616 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:55,617 INFO L477 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 30 treesize of output 34 [2018-11-18 14:12:55,617 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:55,658 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:56,531 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:12:56,532 INFO L477 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 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 14:12:56,546 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:56,557 INFO L477 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 37 treesize of output 46 [2018-11-18 14:12:56,558 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:56,604 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:57,178 INFO L477 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 44 treesize of output 37 [2018-11-18 14:12:57,184 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:57,194 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:57,215 INFO L477 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 21 treesize of output 53 [2018-11-18 14:12:57,216 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 14:12:57,321 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:12:57,905 INFO L477 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 43 treesize of output 34 [2018-11-18 14:12:57,911 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:57,929 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:12:57,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 14:12:57,930 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:57,968 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:58,178 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:12:58,305 INFO L477 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 38 treesize of output 53 [2018-11-18 14:12:58,313 INFO L477 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 42 treesize of output 44 [2018-11-18 14:12:58,320 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:58,325 INFO L477 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 16 treesize of output 23 [2018-11-18 14:12:58,326 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:58,376 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:58,912 INFO L477 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 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-18 14:12:58,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:58,932 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:58,953 INFO L477 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 23 treesize of output 48 [2018-11-18 14:12:58,953 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-18 14:12:59,060 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:12:59,818 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:59,832 INFO L477 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 46 treesize of output 47 [2018-11-18 14:12:59,837 INFO L477 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 8 treesize of output 7 [2018-11-18 14:12:59,837 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:59,868 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:12:59,875 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:12:59,892 INFO L477 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 48 treesize of output 49 [2018-11-18 14:12:59,897 INFO L477 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 8 treesize of output 7 [2018-11-18 14:12:59,897 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 14:12:59,934 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:13:00,417 INFO L303 Elim1Store]: Index analysis took 106 ms [2018-11-18 14:13:00,457 INFO L477 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 40 treesize of output 50 [2018-11-18 14:13:00,464 INFO L477 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 [2018-11-18 14:13:00,465 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:00,778 INFO L477 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 52 [2018-11-18 14:13:00,786 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:00,787 INFO L477 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 44 treesize of output 51 [2018-11-18 14:13:00,787 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:00,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:00,932 INFO L477 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 46 treesize of output 69 [2018-11-18 14:13:00,933 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-18 14:13:01,078 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:13:01,360 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:13:01,982 INFO L477 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 41 treesize of output 53 [2018-11-18 14:13:01,988 INFO L477 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 42 treesize of output 41 [2018-11-18 14:13:01,988 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:02,092 INFO L267 ElimStorePlain]: Start of recursive call 27: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:13:02,317 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:13:02,486 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:13:02,597 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 3 xjuncts. [2018-11-18 14:13:02,598 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 2 variables, input treesize:81, output treesize:99 [2018-11-18 14:13:02,752 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-11-18 14:13:02,954 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-11-18 14:13:03,359 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-11-18 14:13:03,480 INFO L477 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 94 treesize of output 98 [2018-11-18 14:13:03,690 INFO L477 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 111 [2018-11-18 14:13:03,713 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:04,131 INFO L477 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 2 case distinctions, treesize of input 99 treesize of output 148 [2018-11-18 14:13:04,132 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-18 14:13:04,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:04,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:04,832 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:04,833 INFO L477 Elim1Store]: Elim1 did not use 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 124 [2018-11-18 14:13:04,833 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:05,058 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:13:06,434 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:13:09,156 INFO L477 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 60 treesize of output 76 [2018-11-18 14:13:09,167 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2018-11-18 14:13:09,202 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,232 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2018-11-18 14:13:09,238 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:09,294 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:13:09,651 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,659 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2018-11-18 14:13:09,672 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:09,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 49 [2018-11-18 14:13:09,690 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:09,742 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:13:09,922 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:13:11,144 INFO L303 Elim1Store]: Index analysis took 255 ms [2018-11-18 14:13:15,932 INFO L477 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 166 treesize of output 128 [2018-11-18 14:13:15,948 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:15,985 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:15,988 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:16,497 INFO L477 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 4 case distinctions, treesize of input 127 treesize of output 189 [2018-11-18 14:13:16,509 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:16,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:16,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 206 [2018-11-18 14:13:16,514 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:17,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:13:17,060 INFO L477 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 135 treesize of output 148 [2018-11-18 14:13:17,061 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:17,872 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:17,877 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:17,992 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:17,996 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:18,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:18,009 INFO L303 Elim1Store]: Index analysis took 147 ms [2018-11-18 14:13:18,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 139 treesize of output 216 [2018-11-18 14:13:18,043 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-11-18 14:13:18,593 INFO L267 ElimStorePlain]: Start of recursive call 12: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:13:32,195 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:32,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 106 treesize of output 172 [2018-11-18 14:13:32,474 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:32,482 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:32,494 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:13:32,496 INFO L477 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 140 treesize of output 143 [2018-11-18 14:13:32,496 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:33,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:33,205 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:13:33,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 148 [2018-11-18 14:13:33,207 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:34,317 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:34,329 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:34,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 186 [2018-11-18 14:13:34,335 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:35,618 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:35,630 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:36,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 134 treesize of output 187 [2018-11-18 14:13:36,153 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2018-11-18 14:13:36,819 INFO L267 ElimStorePlain]: Start of recursive call 16: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:13:50,844 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:50,917 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:13:50,917 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-11-18 14:13:51,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 118 [2018-11-18 14:13:51,258 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,277 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,282 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,285 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 151 [2018-11-18 14:13:51,287 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:51,937 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,940 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:51,945 INFO L477 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 91 treesize of output 128 [2018-11-18 14:13:51,945 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 14:13:52,537 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:52,552 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:52,595 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:52,642 INFO L303 Elim1Store]: Index analysis took 115 ms [2018-11-18 14:13:52,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 141 [2018-11-18 14:13:52,856 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-18 14:13:53,502 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:53,540 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:13:53,578 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-11-18 14:13:53,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 84 treesize of output 149 [2018-11-18 14:13:53,732 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 4 xjuncts. [2018-11-18 14:13:55,635 INFO L267 ElimStorePlain]: Start of recursive call 21: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:13:59,309 INFO L267 ElimStorePlain]: Start of recursive call 11: 4 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-18 14:14:00,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 11 dim-0 vars, and 12 xjuncts. [2018-11-18 14:14:00,933 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 7 variables, input treesize:321, output treesize:1260 [2018-11-18 14:14:40,842 WARN L180 SmtUtils]: Spent 39.57 s on a formula simplification. DAG size of input: 178 DAG size of output: 69 [2018-11-18 14:14:41,095 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 14:14:41,095 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:41,784 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:41,790 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:41,792 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:41,793 INFO L477 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 142 treesize of output 133 [2018-11-18 14:14:41,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:42,736 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:42,739 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:42,740 INFO L477 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 140 treesize of output 132 [2018-11-18 14:14:42,740 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:43,387 INFO L477 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 132 treesize of output 120 [2018-11-18 14:14:43,393 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:43,394 INFO L477 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 98 treesize of output 84 [2018-11-18 14:14:43,395 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:43,443 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:43,713 INFO L477 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 100 treesize of output 88 [2018-11-18 14:14:43,718 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:43,719 INFO L477 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 82 treesize of output 68 [2018-11-18 14:14:43,719 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:43,754 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,118 INFO L477 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 133 treesize of output 121 [2018-11-18 14:14:45,125 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:45,127 INFO L477 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 98 treesize of output 84 [2018-11-18 14:14:45,127 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,184 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,283 INFO L477 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 101 treesize of output 89 [2018-11-18 14:14:45,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:45,290 INFO L477 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 82 treesize of output 68 [2018-11-18 14:14:45,290 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,324 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,411 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 8 dim-1 vars, 16 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-18 14:14:45,411 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 30 variables, input treesize:1059, output treesize:138 [2018-11-18 14:14:45,803 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:45,808 INFO L477 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 48 [2018-11-18 14:14:45,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:14:45,814 INFO L477 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 8 [2018-11-18 14:14:45,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,828 INFO L477 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 19 treesize of output 4 [2018-11-18 14:14:45,828 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:14:45,832 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:61, output treesize:4 [2018-11-18 14:14:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:14:45,893 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:14:45,894 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:14:45,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-11-18 14:14:45,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 14:14:45,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 14:14:45,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:14:45,895 INFO L87 Difference]: Start difference. First operand 215 states and 253 transitions. Second operand 16 states. [2018-11-18 14:14:46,433 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2018-11-18 14:14:46,882 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2018-11-18 14:14:48,131 WARN L180 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2018-11-18 14:14:56,173 WARN L180 SmtUtils]: Spent 7.56 s on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2018-11-18 14:14:57,236 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-18 14:15:01,701 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-11-18 14:15:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:15:09,483 INFO L93 Difference]: Finished difference Result 353 states and 423 transitions. [2018-11-18 14:15:09,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 14:15:09,483 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2018-11-18 14:15:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:15:09,495 INFO L225 Difference]: With dead ends: 353 [2018-11-18 14:15:09,495 INFO L226 Difference]: Without dead ends: 350 [2018-11-18 14:15:09,496 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 51.4s TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2018-11-18 14:15:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-11-18 14:15:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 315. [2018-11-18 14:15:09,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-11-18 14:15:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 378 transitions. [2018-11-18 14:15:09,545 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 378 transitions. Word has length 40 [2018-11-18 14:15:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:15:09,546 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 378 transitions. [2018-11-18 14:15:09,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 14:15:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 378 transitions. [2018-11-18 14:15:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 14:15:09,547 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:09,547 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:15:09,547 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:09,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash 918771718, now seen corresponding path program 1 times [2018-11-18 14:15:09,548 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:15:09,548 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4946dce6-285d-4105-b316-8978776e92af/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 [2018-11-18 14:15:09,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:09,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:09,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-11-18 14:15:09,706 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:09,714 INFO L477 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 2 case distinctions, treesize of input 12 treesize of output 15 [2018-11-18 14:15:09,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-18 14:15:09,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:15:09,892 INFO L477 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 24 treesize of output 21 [2018-11-18 14:15:09,896 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:15:09,902 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:09,903 INFO L477 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 24 treesize of output 32 [2018-11-18 14:15:09,910 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:09,911 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:15:09,916 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:09,917 INFO L477 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 23 treesize of output 26 [2018-11-18 14:15:09,917 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:09,937 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:09,955 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:09,969 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:09,984 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,044 INFO L477 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 24 treesize of output 21 [2018-11-18 14:15:10,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-18 14:15:10,053 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,053 INFO L477 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 24 treesize of output 32 [2018-11-18 14:15:10,059 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,065 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 32 [2018-11-18 14:15:10,069 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,072 INFO L477 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 23 treesize of output 26 [2018-11-18 14:15:10,073 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,084 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,092 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,099 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,105 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,128 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:15:10,128 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 3 variables, input treesize:61, output treesize:91 [2018-11-18 14:15:10,185 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,186 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,186 INFO L477 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 57 treesize of output 49 [2018-11-18 14:15:10,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,240 INFO L477 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 55 treesize of output 48 [2018-11-18 14:15:10,241 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,292 INFO L477 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 [2018-11-18 14:15:10,296 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,297 INFO L477 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 13 treesize of output 6 [2018-11-18 14:15:10,297 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,322 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,370 INFO L477 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 48 treesize of output 44 [2018-11-18 14:15:10,372 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,373 INFO L477 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 13 treesize of output 6 [2018-11-18 14:15:10,373 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,387 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,428 INFO L477 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 33 treesize of output 29 [2018-11-18 14:15:10,431 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,431 INFO L477 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 13 treesize of output 6 [2018-11-18 14:15:10,432 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,442 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,472 INFO L477 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 25 [2018-11-18 14:15:10,475 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:10,476 INFO L477 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 13 treesize of output 6 [2018-11-18 14:15:10,476 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,484 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:10,500 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 6 variables, input treesize:113, output treesize:13 [2018-11-18 14:15:10,626 INFO L477 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 77 treesize of output 48 [2018-11-18 14:15:10,824 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 14:15:10,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-18 14:15:10,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:11,168 INFO L477 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 38 treesize of output 53 [2018-11-18 14:15:11,175 INFO L477 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 42 treesize of output 44 [2018-11-18 14:15:11,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:11,191 INFO L477 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 16 treesize of output 23 [2018-11-18 14:15:11,191 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:11,238 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:11,635 INFO L477 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 0 case distinctions, treesize of input 39 treesize of output 41 [2018-11-18 14:15:11,647 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:11,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:11,693 INFO L477 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 23 treesize of output 48 [2018-11-18 14:15:11,694 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 14:15:11,804 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:15:12,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 57 [2018-11-18 14:15:12,477 INFO L477 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 46 treesize of output 45 [2018-11-18 14:15:12,477 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:12,636 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,012 INFO L477 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 44 treesize of output 41 [2018-11-18 14:15:13,017 INFO L477 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 8 treesize of output 7 [2018-11-18 14:15:13,018 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,049 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,067 INFO L477 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 42 treesize of output 39 [2018-11-18 14:15:13,071 INFO L477 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 8 treesize of output 7 [2018-11-18 14:15:13,072 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,100 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,294 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:15:13,383 INFO L477 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 45 treesize of output 58 [2018-11-18 14:15:13,390 INFO L477 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 47 treesize of output 46 [2018-11-18 14:15:13,397 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:13,398 INFO L477 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 30 treesize of output 34 [2018-11-18 14:15:13,398 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:13,442 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:14,010 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:14,011 INFO L477 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 0 case distinctions, treesize of input 44 treesize of output 43 [2018-11-18 14:15:14,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:14,031 INFO L477 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 37 treesize of output 46 [2018-11-18 14:15:14,031 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:14,099 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:14,881 INFO L477 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 43 treesize of output 34 [2018-11-18 14:15:14,887 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:15:14,906 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:14,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 42 [2018-11-18 14:15:14,907 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:14,943 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:15,437 INFO L477 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 47 treesize of output 55 [2018-11-18 14:15:15,449 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:15,650 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:15:15,651 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_78 term size 24 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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:429) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2018-11-18 14:15:15,654 INFO L168 Benchmark]: Toolchain (without parser) took 650700.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 944.4 MB in the beginning and 945.0 MB in the end (delta: -643.9 kB). Peak memory consumption was 207.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,654 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-18 14:15:15,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,655 INFO L168 Benchmark]: Boogie Preprocessor took 41.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,656 INFO L168 Benchmark]: RCFGBuilder took 477.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,656 INFO L168 Benchmark]: TraceAbstraction took 649618.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 945.0 MB in the end (delta: 77.7 MB). Peak memory consumption was 162.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:15,658 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 534.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). Peak memory consumption was 47.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 477.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 649618.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.9 MB). Free memory was 1.0 GB in the beginning and 945.0 MB in the end (delta: 77.7 MB). Peak memory consumption was 162.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_78 term size 24 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_78 term size 24: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...