./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort_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_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 e6399ca05df7547b7620299987a8a06e9e2c006b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 e6399ca05df7547b7620299987a8a06e9e2c006b ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_225 term size 43 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:35:03,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:35:03,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:35:03,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:35:03,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:35:03,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:35:03,146 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:35:03,147 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:35:03,148 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:35:03,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:35:03,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:35:03,150 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:35:03,150 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:35:03,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:35:03,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:35:03,153 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:35:03,153 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:35:03,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:35:03,157 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:35:03,158 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:35:03,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:35:03,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:35:03,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:35:03,162 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:35:03,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:35:03,162 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:35:03,163 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:35:03,164 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:35:03,165 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:35:03,165 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:35:03,165 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:35:03,166 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:35:03,166 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:35:03,166 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:35:03,167 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:35:03,168 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:35:03,168 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:35:03,178 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:35:03,178 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:35:03,179 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:35:03,179 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:35:03,179 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:35:03,179 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:35:03,179 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:35:03,180 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:35:03,180 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:35:03,181 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:35:03,182 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:35:03,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:35:03,184 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:35:03,184 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:35:03,184 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:35:03,184 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:35:03,185 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:35:03,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:35:03,185 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:35:03,185 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_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-18 14:35:03,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:35:03,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:35:03,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:35:03,219 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:35:03,219 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:35:03,220 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:35:03,261 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/5cd75d3a2/0db3344474484fc8b40fe8ef737ee459/FLAGf9b8a5bcb [2018-11-18 14:35:03,686 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:35:03,686 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:35:03,696 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/5cd75d3a2/0db3344474484fc8b40fe8ef737ee459/FLAGf9b8a5bcb [2018-11-18 14:35:04,022 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/5cd75d3a2/0db3344474484fc8b40fe8ef737ee459 [2018-11-18 14:35:04,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:35:04,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:35:04,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:35:04,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:35:04,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:35:04,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fc5708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04, skipping insertion in model container [2018-11-18 14:35:04,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:35:04,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:35:04,280 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:35:04,286 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:35:04,372 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:35:04,407 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:35:04,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04 WrapperNode [2018-11-18 14:35:04,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:35:04,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:35:04,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:35:04,408 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:35:04,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:35:04,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:35:04,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:35:04,437 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:35:04,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... [2018-11-18 14:35:04,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:35:04,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:35:04,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:35:04,473 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:35:04,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:35:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-18 14:35:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-18 14:35:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-18 14:35:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-18 14:35:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 14:35:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:35:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:35:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-18 14:35:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:35:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-18 14:35:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-18 14:35:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:35:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:35:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:35:05,029 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:35:05,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:05 BoogieIcfgContainer [2018-11-18 14:35:05,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:35:05,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:35:05,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:35:05,033 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:35:05,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:35:04" (1/3) ... [2018-11-18 14:35:05,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7131685d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:05, skipping insertion in model container [2018-11-18 14:35:05,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:35:04" (2/3) ... [2018-11-18 14:35:05,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7131685d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:35:05, skipping insertion in model container [2018-11-18 14:35:05,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:35:05" (3/3) ... [2018-11-18 14:35:05,035 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:35:05,044 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:35:05,051 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:35:05,064 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:35:05,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:35:05,087 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:35:05,087 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:35:05,087 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:35:05,087 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:35:05,087 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:35:05,087 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:35:05,087 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:35:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2018-11-18 14:35:05,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 14:35:05,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:05,108 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:05,110 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:05,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:05,113 INFO L82 PathProgramCache]: Analyzing trace with hash 2134000035, now seen corresponding path program 1 times [2018-11-18 14:35:05,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:05,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:05,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,156 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:05,205 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 14:35:05,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:05,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:35:05,208 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:05,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:35:05,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:35:05,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:35:05,226 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2018-11-18 14:35:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:05,254 INFO L93 Difference]: Finished difference Result 240 states and 391 transitions. [2018-11-18 14:35:05,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:35:05,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 14:35:05,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:05,266 INFO L225 Difference]: With dead ends: 240 [2018-11-18 14:35:05,266 INFO L226 Difference]: Without dead ends: 111 [2018-11-18 14:35:05,270 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 14:35:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-18 14:35:05,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-11-18 14:35:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 14:35:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 134 transitions. [2018-11-18 14:35:05,302 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 134 transitions. Word has length 14 [2018-11-18 14:35:05,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:05,303 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 134 transitions. [2018-11-18 14:35:05,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:35:05,303 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 134 transitions. [2018-11-18 14:35:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 14:35:05,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:05,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:05,304 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:05,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:05,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1209057239, now seen corresponding path program 1 times [2018-11-18 14:35:05,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:05,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:05,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,306 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:05,345 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 14:35:05,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:05,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:35:05,346 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:05,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:35:05,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:35:05,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:35:05,348 INFO L87 Difference]: Start difference. First operand 111 states and 134 transitions. Second operand 3 states. [2018-11-18 14:35:05,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:05,374 INFO L93 Difference]: Finished difference Result 216 states and 262 transitions. [2018-11-18 14:35:05,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:35:05,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 14:35:05,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:05,376 INFO L225 Difference]: With dead ends: 216 [2018-11-18 14:35:05,376 INFO L226 Difference]: Without dead ends: 118 [2018-11-18 14:35:05,377 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:35:05,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-18 14:35:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2018-11-18 14:35:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-18 14:35:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2018-11-18 14:35:05,385 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2018-11-18 14:35:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:05,386 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2018-11-18 14:35:05,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:35:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2018-11-18 14:35:05,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:35:05,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:05,386 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:05,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:05,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash 869421215, now seen corresponding path program 1 times [2018-11-18 14:35:05,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,388 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:05,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:05,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:35:05,445 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:05,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:35:05,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:35:05,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:05,446 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand 6 states. [2018-11-18 14:35:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:05,569 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2018-11-18 14:35:05,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:35:05,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 14:35:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:05,570 INFO L225 Difference]: With dead ends: 163 [2018-11-18 14:35:05,570 INFO L226 Difference]: Without dead ends: 158 [2018-11-18 14:35:05,571 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-18 14:35:05,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 119. [2018-11-18 14:35:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-18 14:35:05,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2018-11-18 14:35:05,579 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 23 [2018-11-18 14:35:05,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:05,579 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2018-11-18 14:35:05,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:35:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2018-11-18 14:35:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 14:35:05,580 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:05,580 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:05,580 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:05,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:05,580 INFO L82 PathProgramCache]: Analyzing trace with hash -558452585, now seen corresponding path program 1 times [2018-11-18 14:35:05,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:05,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:05,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,582 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:05,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:05,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:35:05,669 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:05,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:05,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:05,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:05,670 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 5 states. [2018-11-18 14:35:05,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:05,889 INFO L93 Difference]: Finished difference Result 121 states and 143 transitions. [2018-11-18 14:35:05,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:05,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 14:35:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:05,891 INFO L225 Difference]: With dead ends: 121 [2018-11-18 14:35:05,891 INFO L226 Difference]: Without dead ends: 118 [2018-11-18 14:35:05,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:05,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-18 14:35:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-11-18 14:35:05,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-18 14:35:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 140 transitions. [2018-11-18 14:35:05,899 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 140 transitions. Word has length 31 [2018-11-18 14:35:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:05,899 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 140 transitions. [2018-11-18 14:35:05,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:05,900 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 140 transitions. [2018-11-18 14:35:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 14:35:05,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:05,900 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:05,900 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:05,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:05,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1948024593, now seen corresponding path program 1 times [2018-11-18 14:35:05,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:05,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:05,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:05,902 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:05,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:05,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:35:05,960 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:05,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:05,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:05,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:35:05,961 INFO L87 Difference]: Start difference. First operand 118 states and 140 transitions. Second operand 5 states. [2018-11-18 14:35:06,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:06,079 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2018-11-18 14:35:06,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:06,080 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-18 14:35:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:06,081 INFO L225 Difference]: With dead ends: 120 [2018-11-18 14:35:06,081 INFO L226 Difference]: Without dead ends: 117 [2018-11-18 14:35:06,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-11-18 14:35:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-11-18 14:35:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 14:35:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 138 transitions. [2018-11-18 14:35:06,091 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 138 transitions. Word has length 31 [2018-11-18 14:35:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:06,091 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 138 transitions. [2018-11-18 14:35:06,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:06,091 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 138 transitions. [2018-11-18 14:35:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 14:35:06,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:06,092 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:06,092 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:06,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:06,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1677033923, now seen corresponding path program 1 times [2018-11-18 14:35:06,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:06,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:06,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:06,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:06,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:35:06,160 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:06,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:06,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:06,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:35:06,161 INFO L87 Difference]: Start difference. First operand 117 states and 138 transitions. Second operand 7 states. [2018-11-18 14:35:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:06,328 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2018-11-18 14:35:06,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:35:06,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 14:35:06,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:06,331 INFO L225 Difference]: With dead ends: 153 [2018-11-18 14:35:06,331 INFO L226 Difference]: Without dead ends: 150 [2018-11-18 14:35:06,331 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:06,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-18 14:35:06,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 123. [2018-11-18 14:35:06,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-11-18 14:35:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2018-11-18 14:35:06,340 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 34 [2018-11-18 14:35:06,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:06,340 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2018-11-18 14:35:06,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:06,341 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2018-11-18 14:35:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 14:35:06,341 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:06,341 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:06,342 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:06,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:06,342 INFO L82 PathProgramCache]: Analyzing trace with hash -227901363, now seen corresponding path program 1 times [2018-11-18 14:35:06,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:06,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:06,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:06,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:06,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:35:06,405 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:06,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:06,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:06,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:35:06,406 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 7 states. [2018-11-18 14:35:06,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:06,557 INFO L93 Difference]: Finished difference Result 152 states and 177 transitions. [2018-11-18 14:35:06,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:35:06,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 14:35:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:06,559 INFO L225 Difference]: With dead ends: 152 [2018-11-18 14:35:06,559 INFO L226 Difference]: Without dead ends: 149 [2018-11-18 14:35:06,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:06,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-18 14:35:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 129. [2018-11-18 14:35:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-18 14:35:06,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-11-18 14:35:06,568 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 34 [2018-11-18 14:35:06,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:06,568 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-11-18 14:35:06,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-11-18 14:35:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 14:35:06,569 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:06,569 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:06,570 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:06,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:06,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1308031909, now seen corresponding path program 1 times [2018-11-18 14:35:06,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:06,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:06,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,571 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:06,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:06,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:35:06,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:06,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:35:06,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:35:06,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:06,694 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 8 states. [2018-11-18 14:35:06,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:06,969 INFO L93 Difference]: Finished difference Result 151 states and 175 transitions. [2018-11-18 14:35:06,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:35:06,970 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 14:35:06,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:06,971 INFO L225 Difference]: With dead ends: 151 [2018-11-18 14:35:06,971 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 14:35:06,972 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 14:35:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 132. [2018-11-18 14:35:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-18 14:35:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2018-11-18 14:35:06,979 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 37 [2018-11-18 14:35:06,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:06,980 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2018-11-18 14:35:06,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:35:06,980 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2018-11-18 14:35:06,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 14:35:06,981 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:06,981 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:06,981 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:06,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:06,981 INFO L82 PathProgramCache]: Analyzing trace with hash 718671903, now seen corresponding path program 1 times [2018-11-18 14:35:06,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:06,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:06,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:06,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:07,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:07,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:35:07,071 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:07,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:35:07,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:35:07,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:07,071 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand 8 states. [2018-11-18 14:35:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:07,323 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2018-11-18 14:35:07,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:35:07,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-11-18 14:35:07,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:07,325 INFO L225 Difference]: With dead ends: 150 [2018-11-18 14:35:07,325 INFO L226 Difference]: Without dead ends: 147 [2018-11-18 14:35:07,326 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:35:07,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-11-18 14:35:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 135. [2018-11-18 14:35:07,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-11-18 14:35:07,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2018-11-18 14:35:07,333 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 37 [2018-11-18 14:35:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:07,334 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2018-11-18 14:35:07,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:35:07,334 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2018-11-18 14:35:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 14:35:07,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:07,335 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:07,335 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:07,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 668335692, now seen corresponding path program 1 times [2018-11-18 14:35:07,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:07,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:07,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:07,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:07,336 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:07,404 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:07,405 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:07,405 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-11-18 14:35:07,408 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [50], [52], [56], [62], [66], [74], [80], [84], [92], [98], [102], [110], [116], [120], [126], [132], [135], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [360], [363], [364], [424], [432], [450], [451], [452] [2018-11-18 14:35:07,447 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:07,448 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:07,694 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:07,696 INFO L272 AbstractInterpreter]: Visited 40 different actions 67 times. Merged at 25 different actions 25 times. Never widened. Performed 416 root evaluator evaluations with a maximum evaluation depth of 3. Performed 416 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 30 variables. [2018-11-18 14:35:07,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:07,708 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:07,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:07,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:35:07,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:07,716 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:07,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:07,803 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 14:35:07,805 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 16 treesize of output 4 [2018-11-18 14:35:07,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,829 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 14 treesize of output 12 [2018-11-18 14:35:07,839 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 7 treesize of output 1 [2018-11-18 14:35:07,839 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,843 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,857 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 27 [2018-11-18 14:35:07,863 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 7 treesize of output 1 [2018-11-18 14:35:07,863 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,868 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,883 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 20 treesize of output 16 [2018-11-18 14:35:07,886 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 16 treesize of output 4 [2018-11-18 14:35:07,886 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,889 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:07,892 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:07,893 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 14:35:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:07,903 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:07,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:07,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2018-11-18 14:35:07,980 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:07,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:35:07,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:35:07,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:07,981 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 5 states. [2018-11-18 14:35:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:08,114 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2018-11-18 14:35:08,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:35:08,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-11-18 14:35:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:08,116 INFO L225 Difference]: With dead ends: 137 [2018-11-18 14:35:08,116 INFO L226 Difference]: Without dead ends: 133 [2018-11-18 14:35:08,116 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-18 14:35:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-11-18 14:35:08,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-18 14:35:08,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2018-11-18 14:35:08,124 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 43 [2018-11-18 14:35:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:08,124 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2018-11-18 14:35:08,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:35:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2018-11-18 14:35:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 14:35:08,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:08,127 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:08,127 INFO L423 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:08,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:08,127 INFO L82 PathProgramCache]: Analyzing trace with hash -569107419, now seen corresponding path program 1 times [2018-11-18 14:35:08,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:08,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:08,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:08,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:08,129 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:08,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:08,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:35:08,180 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:08,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:35:08,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:35:08,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:08,180 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 6 states. [2018-11-18 14:35:08,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:08,257 INFO L93 Difference]: Finished difference Result 165 states and 189 transitions. [2018-11-18 14:35:08,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:35:08,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-18 14:35:08,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:08,258 INFO L225 Difference]: With dead ends: 165 [2018-11-18 14:35:08,259 INFO L226 Difference]: Without dead ends: 162 [2018-11-18 14:35:08,259 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-18 14:35:08,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 140. [2018-11-18 14:35:08,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-11-18 14:35:08,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 160 transitions. [2018-11-18 14:35:08,269 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 160 transitions. Word has length 47 [2018-11-18 14:35:08,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:08,269 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 160 transitions. [2018-11-18 14:35:08,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:35:08,270 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 160 transitions. [2018-11-18 14:35:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 14:35:08,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:08,270 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:08,272 INFO L423 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:08,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:08,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2101265191, now seen corresponding path program 1 times [2018-11-18 14:35:08,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:08,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:08,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:08,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:08,274 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:08,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:08,461 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:08,461 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-11-18 14:35:08,461 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [50], [132], [138], [142], [150], [156], [160], [168], [174], [178], [186], [192], [196], [202], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [240], [242], [245], [270], [274], [280], [284], [292], [295], [360], [363], [364], [432], [433], [436], [440], [450], [451], [452] [2018-11-18 14:35:08,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:08,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:08,530 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:08,531 INFO L272 AbstractInterpreter]: Visited 48 different actions 57 times. Merged at 8 different actions 8 times. Never widened. Performed 346 root evaluator evaluations with a maximum evaluation depth of 3. Performed 346 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-18 14:35:08,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:08,547 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:08,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:08,547 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:08,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:08,555 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:08,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:08,617 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 14 treesize of output 11 [2018-11-18 14:35:08,619 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 11 treesize of output 14 [2018-11-18 14:35:08,622 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 14 treesize of output 15 [2018-11-18 14:35:08,622 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,628 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,631 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,638 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 14 treesize of output 11 [2018-11-18 14:35:08,648 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 11 treesize of output 14 [2018-11-18 14:35:08,651 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 14 treesize of output 15 [2018-11-18 14:35:08,652 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,655 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,659 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,668 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 14:35:08,735 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 15 treesize of output 11 [2018-11-18 14:35:08,736 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 11 treesize of output 3 [2018-11-18 14:35:08,737 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,739 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,752 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 15 treesize of output 11 [2018-11-18 14:35:08,755 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 11 treesize of output 3 [2018-11-18 14:35:08,755 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,757 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:08,760 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:35:08,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:08,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:08,855 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:08,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 14 [2018-11-18 14:35:08,855 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:08,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 14:35:08,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 14:35:08,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:35:08,856 INFO L87 Difference]: Start difference. First operand 140 states and 160 transitions. Second operand 11 states. [2018-11-18 14:35:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,180 INFO L93 Difference]: Finished difference Result 292 states and 339 transitions. [2018-11-18 14:35:09,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:35:09,180 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-11-18 14:35:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,182 INFO L225 Difference]: With dead ends: 292 [2018-11-18 14:35:09,182 INFO L226 Difference]: Without dead ends: 289 [2018-11-18 14:35:09,182 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 10 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:35:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-11-18 14:35:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 216. [2018-11-18 14:35:09,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 14:35:09,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 244 transitions. [2018-11-18 14:35:09,198 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 244 transitions. Word has length 50 [2018-11-18 14:35:09,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,198 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 244 transitions. [2018-11-18 14:35:09,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 14:35:09,198 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 244 transitions. [2018-11-18 14:35:09,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 14:35:09,199 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,199 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:09,200 INFO L423 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:09,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1416634458, now seen corresponding path program 1 times [2018-11-18 14:35:09,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:09,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,201 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:09,362 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:09,362 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 50 with the following transitions: [2018-11-18 14:35:09,362 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [50], [52], [56], [62], [66], [74], [80], [84], [92], [98], [102], [110], [116], [120], [126], [132], [138], [142], [150], [156], [160], [168], [171], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [360], [363], [364], [428], [432], [450], [451], [452] [2018-11-18 14:35:09,364 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:09,364 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:09,442 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:09,442 INFO L272 AbstractInterpreter]: Visited 46 different actions 81 times. Merged at 32 different actions 32 times. Never widened. Performed 492 root evaluator evaluations with a maximum evaluation depth of 3. Performed 492 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 34 variables. [2018-11-18 14:35:09,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,455 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:09,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:09,455 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:09,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,471 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:09,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:09,543 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 14 treesize of output 11 [2018-11-18 14:35:09,545 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 11 treesize of output 14 [2018-11-18 14:35:09,549 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 14 treesize of output 15 [2018-11-18 14:35:09,549 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,552 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,555 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,561 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 14 treesize of output 11 [2018-11-18 14:35:09,563 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 11 treesize of output 14 [2018-11-18 14:35:09,571 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 14 treesize of output 15 [2018-11-18 14:35:09,571 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,574 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,577 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,583 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 14:35:09,598 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 15 treesize of output 11 [2018-11-18 14:35:09,600 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 11 treesize of output 3 [2018-11-18 14:35:09,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,601 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,605 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 15 treesize of output 11 [2018-11-18 14:35:09,607 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 11 treesize of output 3 [2018-11-18 14:35:09,607 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,608 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:09,611 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:35:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,621 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:09,684 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:09,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 14 [2018-11-18 14:35:09,684 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:09,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 14:35:09,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 14:35:09,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:35:09,685 INFO L87 Difference]: Start difference. First operand 216 states and 244 transitions. Second operand 11 states. [2018-11-18 14:35:09,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:09,910 INFO L93 Difference]: Finished difference Result 292 states and 334 transitions. [2018-11-18 14:35:09,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:35:09,911 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-11-18 14:35:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:09,912 INFO L225 Difference]: With dead ends: 292 [2018-11-18 14:35:09,912 INFO L226 Difference]: Without dead ends: 184 [2018-11-18 14:35:09,913 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 91 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:35:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-18 14:35:09,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2018-11-18 14:35:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-11-18 14:35:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 201 transitions. [2018-11-18 14:35:09,925 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 201 transitions. Word has length 49 [2018-11-18 14:35:09,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:09,925 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 201 transitions. [2018-11-18 14:35:09,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 14:35:09,925 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 201 transitions. [2018-11-18 14:35:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 14:35:09,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:09,926 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:09,926 INFO L423 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:09,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash 314300979, now seen corresponding path program 1 times [2018-11-18 14:35:09,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:09,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:09,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:09,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:10,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:10,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:35:10,035 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:10,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:35:10,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:35:10,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:10,036 INFO L87 Difference]: Start difference. First operand 179 states and 201 transitions. Second operand 10 states. [2018-11-18 14:35:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,239 INFO L93 Difference]: Finished difference Result 210 states and 236 transitions. [2018-11-18 14:35:10,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:35:10,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2018-11-18 14:35:10,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,241 INFO L225 Difference]: With dead ends: 210 [2018-11-18 14:35:10,241 INFO L226 Difference]: Without dead ends: 207 [2018-11-18 14:35:10,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:35:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-11-18 14:35:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 195. [2018-11-18 14:35:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-11-18 14:35:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 219 transitions. [2018-11-18 14:35:10,251 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 219 transitions. Word has length 53 [2018-11-18 14:35:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,252 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 219 transitions. [2018-11-18 14:35:10,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:35:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 219 transitions. [2018-11-18 14:35:10,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-18 14:35:10,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,253 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:35:10,253 INFO L423 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:10,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1636142161, now seen corresponding path program 1 times [2018-11-18 14:35:10,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:10,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,254 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:10,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:10,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:35:10,301 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:10,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:35:10,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:35:10,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:35:10,302 INFO L87 Difference]: Start difference. First operand 195 states and 219 transitions. Second operand 6 states. [2018-11-18 14:35:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,371 INFO L93 Difference]: Finished difference Result 262 states and 304 transitions. [2018-11-18 14:35:10,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:35:10,371 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-11-18 14:35:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,373 INFO L225 Difference]: With dead ends: 262 [2018-11-18 14:35:10,373 INFO L226 Difference]: Without dead ends: 208 [2018-11-18 14:35:10,373 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:35:10,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-11-18 14:35:10,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 201. [2018-11-18 14:35:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-18 14:35:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2018-11-18 14:35:10,385 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 58 [2018-11-18 14:35:10,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,385 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2018-11-18 14:35:10,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:35:10,385 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2018-11-18 14:35:10,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 14:35:10,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,387 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:10,387 INFO L423 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:10,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2089509983, now seen corresponding path program 2 times [2018-11-18 14:35:10,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:10,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:10,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,389 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:10,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,560 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:10,560 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 14:35:10,560 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 14:35:10,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:10,561 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:10,578 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 14:35:10,579 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 14:35:10,594 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-11-18 14:35:10,595 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:35:10,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:10,681 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 19 treesize of output 15 [2018-11-18 14:35:10,685 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 15 treesize of output 3 [2018-11-18 14:35:10,685 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:10,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:10,692 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 19 treesize of output 15 [2018-11-18 14:35:10,694 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 15 treesize of output 3 [2018-11-18 14:35:10,694 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:10,696 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:10,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:10,699 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-18 14:35:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 14:35:10,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 14:35:10,760 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:35:10,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [12] total 18 [2018-11-18 14:35:10,760 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:10,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:35:10,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:35:10,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2018-11-18 14:35:10,761 INFO L87 Difference]: Start difference. First operand 201 states and 227 transitions. Second operand 7 states. [2018-11-18 14:35:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:10,905 INFO L93 Difference]: Finished difference Result 203 states and 228 transitions. [2018-11-18 14:35:10,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:35:10,905 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-18 14:35:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:10,906 INFO L225 Difference]: With dead ends: 203 [2018-11-18 14:35:10,906 INFO L226 Difference]: Without dead ends: 200 [2018-11-18 14:35:10,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2018-11-18 14:35:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-11-18 14:35:10,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 190. [2018-11-18 14:35:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-11-18 14:35:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 213 transitions. [2018-11-18 14:35:10,917 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 213 transitions. Word has length 57 [2018-11-18 14:35:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:10,918 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 213 transitions. [2018-11-18 14:35:10,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:35:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 213 transitions. [2018-11-18 14:35:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 14:35:10,919 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:10,919 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:10,919 INFO L423 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:10,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:10,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1139918994, now seen corresponding path program 2 times [2018-11-18 14:35:10,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:10,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,920 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:35:10,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:10,920 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:11,203 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:11,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:11,203 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:11,203 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 14:35:11,204 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 14:35:11,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:11,204 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:11,223 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 14:35:11,223 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-18 14:35:11,245 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-18 14:35:11,246 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:35:11,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:11,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:35:11,292 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,296 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 14:35:11,318 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 14 treesize of output 11 [2018-11-18 14:35:11,320 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 11 treesize of output 14 [2018-11-18 14:35:11,324 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 14 treesize of output 15 [2018-11-18 14:35:11,325 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,330 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,341 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:27, output treesize:17 [2018-11-18 14:35:11,349 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:11,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:11,351 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 17 treesize of output 21 [2018-11-18 14:35:11,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,359 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:26 [2018-11-18 14:35:11,402 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:11,403 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:11,403 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:11,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 14:35:11,404 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 14:35:11,418 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 8 treesize of output 7 [2018-11-18 14:35:11,418 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,422 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,430 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:34 [2018-11-18 14:35:11,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 14:35:11,458 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 11 treesize of output 14 [2018-11-18 14:35:11,461 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 14 treesize of output 15 [2018-11-18 14:35:11,461 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,465 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,488 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-11-18 14:35:11,490 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 14:35:11,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 14:35:11,493 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,496 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,504 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,515 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:59, output treesize:66 [2018-11-18 14:35:11,594 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 30 treesize of output 24 [2018-11-18 14:35:11,597 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 14:35:11,597 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:11,601 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:11,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:11,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 14:35:11,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 14:35:11,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 14:35:11,652 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,657 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 14:35:11,658 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,665 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 5 treesize of output 1 [2018-11-18 14:35:11,665 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,668 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,668 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 14:35:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:11,680 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:11,860 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 62 [2018-11-18 14:35:11,889 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 48 treesize of output 48 [2018-11-18 14:35:11,891 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:11,893 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 48 treesize of output 51 [2018-11-18 14:35:11,894 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,900 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,901 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:35:11,901 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:11,909 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:11,920 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 14:35:11,979 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:11,999 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 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 14:35:12,000 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:35:12,057 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 14:35:12,060 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,061 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 27 treesize of output 16 [2018-11-18 14:35:12,061 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 14:35:12,079 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:12,091 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:12,093 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,095 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 14:35:12,097 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,109 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 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 14:35:12,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 14:35:12,156 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,177 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,178 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 25 treesize of output 14 [2018-11-18 14:35:12,178 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,200 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,208 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 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 14:35:12,208 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-11-18 14:35:12,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,212 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 29 treesize of output 22 [2018-11-18 14:35:12,213 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,232 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:12,244 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:12,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-18 14:35:12,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-18 14:35:12,289 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,292 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 14:35:12,300 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:12,301 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 15 treesize of output 5 [2018-11-18 14:35:12,302 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,305 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:12,324 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:35:12,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:35:12,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 14:35:12,358 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 14:35:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:12,452 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:12,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 30 [2018-11-18 14:35:12,452 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:12,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-18 14:35:12,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-18 14:35:12,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2018-11-18 14:35:12,453 INFO L87 Difference]: Start difference. First operand 190 states and 213 transitions. Second operand 23 states. [2018-11-18 14:35:13,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:13,303 INFO L93 Difference]: Finished difference Result 234 states and 263 transitions. [2018-11-18 14:35:13,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 14:35:13,304 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 56 [2018-11-18 14:35:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:13,305 INFO L225 Difference]: With dead ends: 234 [2018-11-18 14:35:13,305 INFO L226 Difference]: Without dead ends: 231 [2018-11-18 14:35:13,306 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 98 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 14:35:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2018-11-18 14:35:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 202. [2018-11-18 14:35:13,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-11-18 14:35:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 226 transitions. [2018-11-18 14:35:13,316 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 226 transitions. Word has length 56 [2018-11-18 14:35:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:13,316 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 226 transitions. [2018-11-18 14:35:13,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-18 14:35:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 226 transitions. [2018-11-18 14:35:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 14:35:13,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:13,317 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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 14:35:13,317 INFO L423 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:13,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:13,317 INFO L82 PathProgramCache]: Analyzing trace with hash -765016292, now seen corresponding path program 1 times [2018-11-18 14:35:13,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:13,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:13,318 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:35:13,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:13,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:13,707 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:13,708 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:13,708 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 57 with the following transitions: [2018-11-18 14:35:13,708 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [52], [56], [62], [66], [74], [80], [84], [92], [95], [98], [102], [110], [116], [120], [126], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [360], [363], [364], [420], [432], [450], [451], [452] [2018-11-18 14:35:13,709 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:13,709 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:13,755 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:13,755 INFO L272 AbstractInterpreter]: Visited 38 different actions 65 times. Merged at 24 different actions 24 times. Never widened. Performed 434 root evaluator evaluations with a maximum evaluation depth of 3. Performed 434 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 30 variables. [2018-11-18 14:35:13,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:13,757 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:13,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:13,757 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:13,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:13,775 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:13,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:13,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:35:13,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,844 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 14:35:13,862 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 14 treesize of output 11 [2018-11-18 14:35:13,866 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 11 treesize of output 14 [2018-11-18 14:35:13,870 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 14 treesize of output 15 [2018-11-18 14:35:13,871 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,875 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,878 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,887 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 14 treesize of output 11 [2018-11-18 14:35:13,889 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 11 treesize of output 14 [2018-11-18 14:35:13,891 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 14 treesize of output 15 [2018-11-18 14:35:13,891 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,895 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,898 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,905 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:37, output treesize:23 [2018-11-18 14:35:13,924 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:13,925 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:13,926 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 17 treesize of output 21 [2018-11-18 14:35:13,926 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,934 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2018-11-18 14:35:13,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:13,959 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:13,961 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:13,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 14:35:13,962 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:13,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 14:35:13,997 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 8 treesize of output 7 [2018-11-18 14:35:13,998 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,003 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-18 14:35:14,020 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 8 treesize of output 7 [2018-11-18 14:35:14,021 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,026 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,037 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,038 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:62, output treesize:47 [2018-11-18 14:35:14,078 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2018-11-18 14:35:14,080 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 14:35:14,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 14:35:14,083 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,093 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 46 [2018-11-18 14:35:14,141 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 11 treesize of output 14 [2018-11-18 14:35:14,144 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 14 treesize of output 15 [2018-11-18 14:35:14,145 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,149 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,157 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,172 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:72, output treesize:91 [2018-11-18 14:35:14,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 93 [2018-11-18 14:35:14,321 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 9 treesize of output 1 [2018-11-18 14:35:14,321 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:14,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 14:35:14,339 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 44 [2018-11-18 14:35:14,365 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:14,373 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:14,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-11-18 14:35:14,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:14,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 14:35:14,387 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,400 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-18 14:35:14,401 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:14,406 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 5 treesize of output 1 [2018-11-18 14:35:14,406 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,408 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:14,417 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:122, output treesize:7 [2018-11-18 14:35:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:14,482 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:16,994 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 94 treesize of output 78 [2018-11-18 14:35:17,014 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 49 [2018-11-18 14:35:17,015 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,017 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 49 treesize of output 52 [2018-11-18 14:35:17,017 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,025 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,035 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,044 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2018-11-18 14:35:17,092 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,093 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,095 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,102 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 40 treesize of output 67 [2018-11-18 14:35:17,103 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,160 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 40 treesize of output 32 [2018-11-18 14:35:17,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,168 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 1 case distinctions, treesize of input 28 treesize of output 22 [2018-11-18 14:35:17,169 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,183 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,185 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 36 treesize of output 30 [2018-11-18 14:35:17,187 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 22 treesize of output 9 [2018-11-18 14:35:17,187 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,192 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,224 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,227 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-11-18 14:35:17,229 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,244 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 4 case distinctions, treesize of input 28 treesize of output 48 [2018-11-18 14:35:17,291 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,295 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 22 treesize of output 13 [2018-11-18 14:35:17,295 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,296 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:35:17,297 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,317 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,318 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,319 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:17,321 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 26 treesize of output 18 [2018-11-18 14:35:17,321 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,335 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,340 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 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 14:35:17,340 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,353 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:17,365 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:17,372 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 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 14:35:17,374 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,376 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 28 treesize of output 15 [2018-11-18 14:35:17,376 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,388 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,393 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 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 14:35:17,393 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,412 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:17,436 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:35:17,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:35:17,505 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 94 treesize of output 78 [2018-11-18 14:35:17,526 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 49 treesize of output 49 [2018-11-18 14:35:17,528 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,530 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 49 treesize of output 52 [2018-11-18 14:35:17,530 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,538 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,548 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,559 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2018-11-18 14:35:17,611 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,612 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,614 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,620 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 40 treesize of output 67 [2018-11-18 14:35:17,620 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,671 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 40 treesize of output 32 [2018-11-18 14:35:17,676 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,680 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 1 case distinctions, treesize of input 28 treesize of output 22 [2018-11-18 14:35:17,680 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,692 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,694 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 36 treesize of output 30 [2018-11-18 14:35:17,696 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 22 treesize of output 9 [2018-11-18 14:35:17,696 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,700 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,728 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,730 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-11-18 14:35:17,732 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,733 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,740 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 28 treesize of output 46 [2018-11-18 14:35:17,769 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,774 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 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 14:35:17,774 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,796 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:17,798 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 26 treesize of output 18 [2018-11-18 14:35:17,798 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,808 INFO L267 ElimStorePlain]: Start of recursive call 30: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,818 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,825 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 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 14:35:17,827 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,829 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 28 treesize of output 15 [2018-11-18 14:35:17,829 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:17,842 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:17,846 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 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 14:35:17,846 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 2 xjuncts. [2018-11-18 14:35:17,867 INFO L267 ElimStorePlain]: Start of recursive call 33: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:17,886 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:35:17,906 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:35:17,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-2 vars, End of recursive call: 11 dim-0 vars, and 9 xjuncts. [2018-11-18 14:35:17,971 INFO L202 ElimStorePlain]: Needed 35 recursive calls to eliminate 10 variables, input treesize:209, output treesize:213 [2018-11-18 14:35:18,142 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:18,158 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:18,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2018-11-18 14:35:18,158 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:18,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-18 14:35:18,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-18 14:35:18,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=911, Unknown=4, NotChecked=0, Total=992 [2018-11-18 14:35:18,159 INFO L87 Difference]: Start difference. First operand 202 states and 226 transitions. Second operand 24 states. [2018-11-18 14:35:19,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:19,958 INFO L93 Difference]: Finished difference Result 399 states and 454 transitions. [2018-11-18 14:35:19,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-18 14:35:19,959 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 56 [2018-11-18 14:35:19,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:19,960 INFO L225 Difference]: With dead ends: 399 [2018-11-18 14:35:19,960 INFO L226 Difference]: Without dead ends: 300 [2018-11-18 14:35:19,961 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=249, Invalid=2297, Unknown=4, NotChecked=0, Total=2550 [2018-11-18 14:35:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-11-18 14:35:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 268. [2018-11-18 14:35:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-11-18 14:35:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 295 transitions. [2018-11-18 14:35:19,973 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 295 transitions. Word has length 56 [2018-11-18 14:35:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:19,973 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 295 transitions. [2018-11-18 14:35:19,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-18 14:35:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 295 transitions. [2018-11-18 14:35:19,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 14:35:19,974 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:19,974 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:35:19,974 INFO L423 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:19,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:19,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1799770534, now seen corresponding path program 1 times [2018-11-18 14:35:19,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:19,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:19,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:19,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:19,976 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:20,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:20,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:35:20,030 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:20,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:35:20,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:35:20,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:20,031 INFO L87 Difference]: Start difference. First operand 268 states and 295 transitions. Second operand 10 states. [2018-11-18 14:35:20,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:20,187 INFO L93 Difference]: Finished difference Result 310 states and 351 transitions. [2018-11-18 14:35:20,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:35:20,188 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-18 14:35:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:20,189 INFO L225 Difference]: With dead ends: 310 [2018-11-18 14:35:20,189 INFO L226 Difference]: Without dead ends: 307 [2018-11-18 14:35:20,189 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:35:20,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-11-18 14:35:20,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 281. [2018-11-18 14:35:20,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-11-18 14:35:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 316 transitions. [2018-11-18 14:35:20,209 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 316 transitions. Word has length 59 [2018-11-18 14:35:20,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:20,209 INFO L480 AbstractCegarLoop]: Abstraction has 281 states and 316 transitions. [2018-11-18 14:35:20,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:35:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 316 transitions. [2018-11-18 14:35:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 14:35:20,210 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:20,210 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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 14:35:20,210 INFO L423 AbstractCegarLoop]: === Iteration 20 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:20,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:20,210 INFO L82 PathProgramCache]: Analyzing trace with hash -305317600, now seen corresponding path program 1 times [2018-11-18 14:35:20,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:20,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:20,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:20,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:20,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:20,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:20,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:35:20,340 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:20,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:35:20,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:35:20,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:20,341 INFO L87 Difference]: Start difference. First operand 281 states and 316 transitions. Second operand 10 states. [2018-11-18 14:35:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:20,645 INFO L93 Difference]: Finished difference Result 298 states and 336 transitions. [2018-11-18 14:35:20,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:35:20,646 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2018-11-18 14:35:20,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:20,647 INFO L225 Difference]: With dead ends: 298 [2018-11-18 14:35:20,647 INFO L226 Difference]: Without dead ends: 293 [2018-11-18 14:35:20,647 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-18 14:35:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2018-11-18 14:35:20,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 285. [2018-11-18 14:35:20,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-11-18 14:35:20,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 320 transitions. [2018-11-18 14:35:20,661 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 320 transitions. Word has length 59 [2018-11-18 14:35:20,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:20,661 INFO L480 AbstractCegarLoop]: Abstraction has 285 states and 320 transitions. [2018-11-18 14:35:20,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:35:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 320 transitions. [2018-11-18 14:35:20,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 14:35:20,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:20,662 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:35:20,662 INFO L423 AbstractCegarLoop]: === Iteration 21 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:20,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1129640330, now seen corresponding path program 1 times [2018-11-18 14:35:20,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:20,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:20,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:20,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:20,663 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:21,604 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:21,604 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:21,605 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 60 with the following transitions: [2018-11-18 14:35:21,605 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [50], [52], [56], [62], [66], [74], [80], [84], [92], [98], [102], [110], [116], [120], [126], [132], [138], [142], [150], [156], [160], [168], [174], [178], [186], [189], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [360], [363], [364], [430], [432], [450], [451], [452] [2018-11-18 14:35:21,606 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:21,606 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:21,659 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:21,659 INFO L272 AbstractInterpreter]: Visited 49 different actions 87 times. Merged at 35 different actions 35 times. Never widened. Performed 528 root evaluator evaluations with a maximum evaluation depth of 3. Performed 528 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 38 variables. [2018-11-18 14:35:21,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:21,667 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:21,667 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:21,667 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:21,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:21,677 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:21,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:21,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:35:21,700 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,703 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:35:21,721 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,723 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 17 treesize of output 21 [2018-11-18 14:35:21,723 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:35:21,740 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 8 treesize of output 7 [2018-11-18 14:35:21,741 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,742 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:35:21,753 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 8 treesize of output 7 [2018-11-18 14:35:21,753 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,755 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,762 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:45, output treesize:35 [2018-11-18 14:35:21,903 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 28 treesize of output 25 [2018-11-18 14:35:21,906 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 13 treesize of output 16 [2018-11-18 14:35:21,908 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,909 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 16 treesize of output 23 [2018-11-18 14:35:21,909 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,913 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,930 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,933 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 24 treesize of output 29 [2018-11-18 14:35:21,934 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 13 treesize of output 16 [2018-11-18 14:35:21,936 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,937 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 16 treesize of output 23 [2018-11-18 14:35:21,937 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,941 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,945 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,955 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:90, output treesize:51 [2018-11-18 14:35:21,982 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,982 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,983 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,984 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:21,984 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 26 treesize of output 46 [2018-11-18 14:35:21,984 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,997 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:21,997 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:65, output treesize:71 [2018-11-18 14:35:22,032 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,035 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,036 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,038 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,039 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-18 14:35:22,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,069 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 62 [2018-11-18 14:35:22,078 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 8 treesize of output 7 [2018-11-18 14:35:22,079 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,088 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,108 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 30 treesize of output 47 [2018-11-18 14:35:22,125 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 8 treesize of output 7 [2018-11-18 14:35:22,125 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,132 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,149 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,150 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:101, output treesize:85 [2018-11-18 14:35:22,199 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,208 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 92 [2018-11-18 14:35:22,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 14:35:22,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 14:35:22,215 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,220 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,259 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,260 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 81 [2018-11-18 14:35:22,272 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 11 treesize of output 14 [2018-11-18 14:35:22,275 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 14 treesize of output 15 [2018-11-18 14:35:22,275 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,279 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,292 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,314 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:107, output treesize:137 [2018-11-18 14:35:22,667 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,669 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,670 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,672 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,673 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:22,676 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 193 [2018-11-18 14:35:22,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,696 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 98 [2018-11-18 14:35:22,698 INFO L267 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-11-18 14:35:22,752 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:22,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 27 [2018-11-18 14:35:22,753 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:22,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,802 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 104 [2018-11-18 14:35:22,804 INFO L267 ElimStorePlain]: Start of recursive call 5: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-18 14:35:22,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 76 [2018-11-18 14:35:22,807 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:35:22,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 118 treesize of output 112 [2018-11-18 14:35:22,819 INFO L267 ElimStorePlain]: Start of recursive call 7: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-18 14:35:22,822 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:22,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 102 [2018-11-18 14:35:22,842 INFO L267 ElimStorePlain]: Start of recursive call 8: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-18 14:35:23,027 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 21 dim-0 vars, and 8 xjuncts. [2018-11-18 14:35:23,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2018-11-18 14:35:23,180 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 27 treesize of output 13 [2018-11-18 14:35:23,180 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 14:35:23,193 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,203 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 11 treesize of output 3 [2018-11-18 14:35:23,203 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,210 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 76 [2018-11-18 14:35:23,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 45 treesize of output 25 [2018-11-18 14:35:23,217 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,227 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 18 treesize of output 9 [2018-11-18 14:35:23,227 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 14:35:23,236 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,242 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 80 [2018-11-18 14:35:23,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 45 treesize of output 25 [2018-11-18 14:35:23,250 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,261 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 18 treesize of output 9 [2018-11-18 14:35:23,261 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 14:35:23,270 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,276 INFO L267 ElimStorePlain]: Start of recursive call 17: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 72 [2018-11-18 14:35:23,283 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 33 treesize of output 17 [2018-11-18 14:35:23,283 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,294 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 18 treesize of output 9 [2018-11-18 14:35:23,294 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 14:35:23,304 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,311 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 72 [2018-11-18 14:35:23,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:23,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2018-11-18 14:35:23,324 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 43 treesize of output 23 [2018-11-18 14:35:23,341 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,351 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 16 treesize of output 7 [2018-11-18 14:35:23,351 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,357 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 74 [2018-11-18 14:35:23,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-11-18 14:35:23,365 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-18 14:35:23,393 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,406 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 21 treesize of output 7 [2018-11-18 14:35:23,406 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,416 INFO L267 ElimStorePlain]: Start of recursive call 29: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 74 [2018-11-18 14:35:23,424 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 27 treesize of output 13 [2018-11-18 14:35:23,424 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-18 14:35:23,439 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,450 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 16 treesize of output 7 [2018-11-18 14:35:23,450 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,460 INFO L267 ElimStorePlain]: Start of recursive call 33: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 70 [2018-11-18 14:35:23,468 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 27 treesize of output 13 [2018-11-18 14:35:23,468 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-18 14:35:23,481 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,491 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 16 treesize of output 7 [2018-11-18 14:35:23,492 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,499 INFO L267 ElimStorePlain]: Start of recursive call 37: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:23,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:23,569 INFO L202 ElimStorePlain]: Needed 40 recursive calls to eliminate 3 variables, input treesize:213, output treesize:15 [2018-11-18 14:35:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:23,610 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:35:28,271 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-11-18 14:35:48,128 WARN L180 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-11-18 14:35:48,138 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 594 treesize of output 475 [2018-11-18 14:35:48,205 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 9 treesize of output 8 [2018-11-18 14:35:48,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,230 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,230 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,241 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 0 case distinctions, treesize of input 400 treesize of output 373 [2018-11-18 14:35:48,244 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,244 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,245 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 30 [2018-11-18 14:35:48,248 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,249 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,250 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 27 treesize of output 31 [2018-11-18 14:35:48,250 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,258 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,288 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 356 treesize of output 344 [2018-11-18 14:35:48,340 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 18 treesize of output 16 [2018-11-18 14:35:48,341 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,358 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 308 [2018-11-18 14:35:48,368 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,384 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 299 treesize of output 313 [2018-11-18 14:35:48,386 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 14:35:48,422 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 6 treesize of output 1 [2018-11-18 14:35:48,423 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,427 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,431 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,440 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,579 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 316 treesize of output 197 [2018-11-18 14:35:48,623 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 9 treesize of output 8 [2018-11-18 14:35:48,623 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,640 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,640 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,642 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 100 [2018-11-18 14:35:48,651 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,653 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,660 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 47 [2018-11-18 14:35:48,699 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,700 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 39 treesize of output 38 [2018-11-18 14:35:48,701 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,721 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,722 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:48,722 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,724 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 22 treesize of output 27 [2018-11-18 14:35:48,724 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,736 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,747 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,748 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2018-11-18 14:35:48,793 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 18 treesize of output 16 [2018-11-18 14:35:48,793 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,805 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,806 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2018-11-18 14:35:48,810 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,818 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 28 [2018-11-18 14:35:48,819 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-18 14:35:48,828 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 6 treesize of output 1 [2018-11-18 14:35:48,829 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,830 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,832 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,836 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,844 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,906 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 594 treesize of output 539 [2018-11-18 14:35:48,969 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 9 treesize of output 8 [2018-11-18 14:35:48,969 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:48,999 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:48,999 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 356 [2018-11-18 14:35:49,033 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 342 treesize of output 345 [2018-11-18 14:35:49,038 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 16 treesize of output 17 [2018-11-18 14:35:49,038 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,057 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,125 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:49,126 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 335 treesize of output 336 [2018-11-18 14:35:49,129 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,131 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 16 treesize of output 20 [2018-11-18 14:35:49,131 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,147 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,194 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,195 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 340 treesize of output 339 [2018-11-18 14:35:49,252 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 9 treesize of output 8 [2018-11-18 14:35:49,252 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,277 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,278 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 317 [2018-11-18 14:35:49,289 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 6 treesize of output 1 [2018-11-18 14:35:49,290 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,309 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 296 treesize of output 281 [2018-11-18 14:35:49,309 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,313 INFO L267 ElimStorePlain]: Start of recursive call 32: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,320 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,352 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 25 treesize of output 21 [2018-11-18 14:35:49,355 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,356 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 3 [2018-11-18 14:35:49,356 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,363 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,388 INFO L267 ElimStorePlain]: Start of recursive call 25: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,406 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,443 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 455 treesize of output 272 [2018-11-18 14:35:49,479 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 9 treesize of output 8 [2018-11-18 14:35:49,479 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,494 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,495 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 144 [2018-11-18 14:35:49,513 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 133 [2018-11-18 14:35:49,517 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 16 treesize of output 17 [2018-11-18 14:35:49,517 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,531 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,572 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:49,573 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,573 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 123 treesize of output 127 [2018-11-18 14:35:49,575 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,576 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 27 [2018-11-18 14:35:49,576 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,587 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,620 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,620 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,621 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 95 [2018-11-18 14:35:49,652 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 9 treesize of output 8 [2018-11-18 14:35:49,652 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,674 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,674 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,674 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,675 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:35:49,676 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,679 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,680 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:49,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 106 [2018-11-18 14:35:49,700 INFO L477 Elim1Store]: Elim1 applied some 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 70 [2018-11-18 14:35:49,906 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 101 [2018-11-18 14:35:49,909 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 37 treesize of output 34 [2018-11-18 14:35:49,909 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:49,975 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 0 case distinctions, treesize of input 34 treesize of output 38 [2018-11-18 14:35:49,976 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 35 [2018-11-18 14:35:50,004 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 31 [2018-11-18 14:35:50,053 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,067 INFO L267 ElimStorePlain]: Start of recursive call 47: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:50,090 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,091 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,091 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,091 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,092 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2018-11-18 14:35:50,098 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 14 [2018-11-18 14:35:50,099 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,111 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 4 [2018-11-18 14:35:50,112 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,118 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,119 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2018-11-18 14:35:50,119 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,124 INFO L267 ElimStorePlain]: Start of recursive call 52: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,125 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,126 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,126 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,126 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2018-11-18 14:35:50,139 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2018-11-18 14:35:50,140 INFO L267 ElimStorePlain]: Start of recursive call 57: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-18 14:35:50,151 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,151 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,152 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 13 treesize of output 7 [2018-11-18 14:35:50,152 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,157 INFO L267 ElimStorePlain]: Start of recursive call 56: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,168 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:50,177 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:35:50,202 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,203 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 64 [2018-11-18 14:35:50,231 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 18 treesize of output 16 [2018-11-18 14:35:50,231 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,243 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,243 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-11-18 14:35:50,250 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 14 [2018-11-18 14:35:50,250 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,257 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,258 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:35:50,258 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 14:35:50,258 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,262 INFO L267 ElimStorePlain]: Start of recursive call 61: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,267 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:50,290 INFO L267 ElimStorePlain]: Start of recursive call 39: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:50,307 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:35:50,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 4 dim-2 vars, End of recursive call: 8 dim-0 vars, and 4 xjuncts. [2018-11-18 14:35:50,352 INFO L202 ElimStorePlain]: Needed 63 recursive calls to eliminate 14 variables, input treesize:1189, output treesize:144 [2018-11-18 14:35:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:50,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:35:50,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 37 [2018-11-18 14:35:50,942 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:35:50,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 14:35:50,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 14:35:50,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1200, Unknown=2, NotChecked=0, Total=1332 [2018-11-18 14:35:50,943 INFO L87 Difference]: Start difference. First operand 285 states and 320 transitions. Second operand 25 states. [2018-11-18 14:35:51,468 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2018-11-18 14:35:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:52,907 INFO L93 Difference]: Finished difference Result 306 states and 345 transitions. [2018-11-18 14:35:52,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 14:35:52,907 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 59 [2018-11-18 14:35:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:52,908 INFO L225 Difference]: With dead ends: 306 [2018-11-18 14:35:52,908 INFO L226 Difference]: Without dead ends: 303 [2018-11-18 14:35:52,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 95 SyntacticMatches, 11 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=290, Invalid=1964, Unknown=2, NotChecked=0, Total=2256 [2018-11-18 14:35:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-11-18 14:35:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 288. [2018-11-18 14:35:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-11-18 14:35:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 322 transitions. [2018-11-18 14:35:52,923 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 322 transitions. Word has length 59 [2018-11-18 14:35:52,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:52,923 INFO L480 AbstractCegarLoop]: Abstraction has 288 states and 322 transitions. [2018-11-18 14:35:52,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 14:35:52,923 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 322 transitions. [2018-11-18 14:35:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-18 14:35:52,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:52,924 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:35:52,924 INFO L423 AbstractCegarLoop]: === Iteration 22 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:52,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:52,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1376027152, now seen corresponding path program 1 times [2018-11-18 14:35:52,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:52,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:52,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:52,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:52,925 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:35:53,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:35:53,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:35:53,029 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:35:53,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:35:53,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:35:53,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:35:53,029 INFO L87 Difference]: Start difference. First operand 288 states and 322 transitions. Second operand 10 states. [2018-11-18 14:35:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:35:53,277 INFO L93 Difference]: Finished difference Result 297 states and 333 transitions. [2018-11-18 14:35:53,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:35:53,277 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2018-11-18 14:35:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:35:53,278 INFO L225 Difference]: With dead ends: 297 [2018-11-18 14:35:53,278 INFO L226 Difference]: Without dead ends: 275 [2018-11-18 14:35:53,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-11-18 14:35:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-11-18 14:35:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 274. [2018-11-18 14:35:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-11-18 14:35:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 307 transitions. [2018-11-18 14:35:53,292 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 307 transitions. Word has length 62 [2018-11-18 14:35:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:35:53,292 INFO L480 AbstractCegarLoop]: Abstraction has 274 states and 307 transitions. [2018-11-18 14:35:53,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:35:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 307 transitions. [2018-11-18 14:35:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 14:35:53,293 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:35:53,293 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:35:53,293 INFO L423 AbstractCegarLoop]: === Iteration 23 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:35:53,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:53,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1156173656, now seen corresponding path program 1 times [2018-11-18 14:35:53,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:35:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:53,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:53,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:35:53,295 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:35:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:35:53,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:53,477 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:35:53,477 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 66 with the following transitions: [2018-11-18 14:35:53,477 INFO L202 CegarAbsIntRunner]: [2], [6], [12], [15], [23], [24], [25], [29], [35], [39], [47], [50], [132], [138], [142], [150], [156], [160], [168], [174], [178], [186], [192], [196], [202], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [240], [242], [245], [247], [249], [270], [274], [280], [284], [292], [298], [302], [310], [313], [360], [363], [364], [432], [433], [434], [435], [436], [442], [450], [451], [452] [2018-11-18 14:35:53,479 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:35:53,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:35:53,511 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:35:53,511 INFO L272 AbstractInterpreter]: Visited 61 different actions 70 times. Merged at 8 different actions 8 times. Never widened. Performed 413 root evaluator evaluations with a maximum evaluation depth of 3. Performed 413 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 30 variables. [2018-11-18 14:35:53,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:35:53,513 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:35:53,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:35:53,513 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:35:53,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:35:53,529 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:35:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:35:53,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:35:53,577 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 14 treesize of output 11 [2018-11-18 14:35:53,583 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 11 treesize of output 14 [2018-11-18 14:35:53,591 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 14 treesize of output 15 [2018-11-18 14:35:53,591 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:35:53,594 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:53,597 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:53,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:35:53,601 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:22, output treesize:12 [2018-11-18 14:36:00,210 WARN L180 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-18 14:36:02,763 WARN L180 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-18 14:36:02,767 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 22 treesize of output 17 [2018-11-18 14:36:02,768 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:02,770 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 17 treesize of output 24 [2018-11-18 14:36:02,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:02,774 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:02,778 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 14:36:02,778 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:12 [2018-11-18 14:36:02,858 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 16 treesize of output 12 [2018-11-18 14:36:02,859 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 14:36:02,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:02,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:02,863 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 14:36:02,863 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 14:36:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:02,879 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:36:03,064 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 16 treesize of output 14 [2018-11-18 14:36:03,065 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 14 treesize of output 18 [2018-11-18 14:36:03,069 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 13 treesize of output 4 [2018-11-18 14:36:03,069 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:03,070 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:03,071 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:03,072 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:03,072 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2018-11-18 14:36:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:03,097 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:36:03,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15, 13] imperfect sequences [15] total 26 [2018-11-18 14:36:03,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:36:03,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 14:36:03,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 14:36:03,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=578, Unknown=4, NotChecked=0, Total=650 [2018-11-18 14:36:03,098 INFO L87 Difference]: Start difference. First operand 274 states and 307 transitions. Second operand 15 states. [2018-11-18 14:36:16,489 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 26 DAG size of output: 21 [2018-11-18 14:36:30,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:30,930 INFO L93 Difference]: Finished difference Result 340 states and 390 transitions. [2018-11-18 14:36:30,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 14:36:30,931 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 65 [2018-11-18 14:36:30,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:30,932 INFO L225 Difference]: With dead ends: 340 [2018-11-18 14:36:30,932 INFO L226 Difference]: Without dead ends: 337 [2018-11-18 14:36:30,933 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 114 SyntacticMatches, 11 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=163, Invalid=1164, Unknown=5, NotChecked=0, Total=1332 [2018-11-18 14:36:30,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-11-18 14:36:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 303. [2018-11-18 14:36:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-11-18 14:36:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 348 transitions. [2018-11-18 14:36:30,953 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 348 transitions. Word has length 65 [2018-11-18 14:36:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:30,953 INFO L480 AbstractCegarLoop]: Abstraction has 303 states and 348 transitions. [2018-11-18 14:36:30,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 14:36:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 348 transitions. [2018-11-18 14:36:30,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-18 14:36:30,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:30,955 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2018-11-18 14:36:30,955 INFO L423 AbstractCegarLoop]: === Iteration 24 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:30,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:30,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2094996184, now seen corresponding path program 1 times [2018-11-18 14:36:30,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:30,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:30,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:30,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:30,957 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:31,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:31,796 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:36:31,796 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 67 with the following transitions: [2018-11-18 14:36:31,797 INFO L202 CegarAbsIntRunner]: [25], [29], [35], [39], [47], [52], [56], [62], [66], [74], [80], [84], [92], [98], [102], [110], [113], [116], [120], [126], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [360], [363], [364], [422], [432], [450], [451], [452] [2018-11-18 14:36:31,798 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:36:31,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:36:31,838 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:36:31,838 INFO L272 AbstractInterpreter]: Visited 38 different actions 65 times. Merged at 24 different actions 24 times. Never widened. Performed 434 root evaluator evaluations with a maximum evaluation depth of 3. Performed 434 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 30 variables. [2018-11-18 14:36:31,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:31,843 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:36:31,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:31,843 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:36:31,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:31,859 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:36:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:31,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:31,896 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:36:31,897 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,898 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 14:36:31,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:31,920 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:31,920 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 17 treesize of output 21 [2018-11-18 14:36:31,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:36:31,936 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 8 treesize of output 7 [2018-11-18 14:36:31,937 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,938 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:36:31,951 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 8 treesize of output 7 [2018-11-18 14:36:31,951 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,952 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:31,960 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:42, output treesize:32 [2018-11-18 14:36:31,996 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 22 treesize of output 23 [2018-11-18 14:36:31,998 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 11 treesize of output 14 [2018-11-18 14:36:32,001 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 14 treesize of output 15 [2018-11-18 14:36:32,001 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,005 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,031 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 22 treesize of output 27 [2018-11-18 14:36:32,033 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 11 treesize of output 14 [2018-11-18 14:36:32,035 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 14 treesize of output 15 [2018-11-18 14:36:32,036 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,039 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,045 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,058 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:60, output treesize:56 [2018-11-18 14:36:32,093 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,094 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,094 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,095 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 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-18 14:36:32,095 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,109 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:67, output treesize:73 [2018-11-18 14:36:32,151 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,155 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-18 14:36:32,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2018-11-18 14:36:32,208 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 8 treesize of output 7 [2018-11-18 14:36:32,208 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,219 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 70 [2018-11-18 14:36:32,255 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 8 treesize of output 7 [2018-11-18 14:36:32,255 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,273 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,294 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:103, output treesize:87 [2018-11-18 14:36:32,359 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 100 [2018-11-18 14:36:32,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 14:36:32,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 14:36:32,365 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,371 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,387 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 97 [2018-11-18 14:36:32,427 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 11 treesize of output 14 [2018-11-18 14:36:32,430 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 14 treesize of output 15 [2018-11-18 14:36:32,431 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,435 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,449 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,472 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:112, output treesize:151 [2018-11-18 14:36:32,693 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,694 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,695 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,696 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,697 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:32,700 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:32,706 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 193 [2018-11-18 14:36:32,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:32,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 14:36:32,709 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 74 [2018-11-18 14:36:32,733 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:32,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 46 [2018-11-18 14:36:32,750 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:32,766 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 9 treesize of output 1 [2018-11-18 14:36:32,766 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:32,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 53 [2018-11-18 14:36:32,799 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-11-18 14:36:32,799 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:32,809 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 11 treesize of output 3 [2018-11-18 14:36:32,809 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,814 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-18 14:36:32,815 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:32,819 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 5 treesize of output 1 [2018-11-18 14:36:32,819 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,820 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,828 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:32,828 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:210, output treesize:7 [2018-11-18 14:36:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:32,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:36:33,268 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-11-18 14:36:34,845 WARN L180 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-11-18 14:36:34,853 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 448 treesize of output 393 [2018-11-18 14:36:34,899 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 9 treesize of output 8 [2018-11-18 14:36:34,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:34,917 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:34,921 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:34,947 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 356 [2018-11-18 14:36:34,951 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 342 treesize of output 345 [2018-11-18 14:36:34,955 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 16 treesize of output 17 [2018-11-18 14:36:34,955 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:34,972 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,033 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,035 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 335 treesize of output 341 [2018-11-18 14:36:35,038 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:35,043 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 22 treesize of output 24 [2018-11-18 14:36:35,043 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,056 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,107 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,108 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 340 treesize of output 339 [2018-11-18 14:36:35,173 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 9 treesize of output 8 [2018-11-18 14:36:35,173 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,193 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,193 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 317 [2018-11-18 14:36:35,200 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 6 treesize of output 1 [2018-11-18 14:36:35,200 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,217 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 296 treesize of output 281 [2018-11-18 14:36:35,217 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,226 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 6 treesize of output 1 [2018-11-18 14:36:35,226 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,229 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,235 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,273 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,278 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 325 [2018-11-18 14:36:35,312 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 9 treesize of output 8 [2018-11-18 14:36:35,312 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,327 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,329 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 310 treesize of output 305 [2018-11-18 14:36:35,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 290 [2018-11-18 14:36:35,339 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-18 14:36:35,361 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 6 treesize of output 1 [2018-11-18 14:36:35,361 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,376 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:35,391 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:35,407 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,471 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 448 treesize of output 329 [2018-11-18 14:36:35,511 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 9 treesize of output 8 [2018-11-18 14:36:35,511 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,533 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,561 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 257 treesize of output 248 [2018-11-18 14:36:35,564 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 237 [2018-11-18 14:36:35,568 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 16 treesize of output 17 [2018-11-18 14:36:35,568 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,585 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,653 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 2 case distinctions, treesize of input 227 treesize of output 235 [2018-11-18 14:36:35,657 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 228 treesize of output 229 [2018-11-18 14:36:35,657 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,696 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,697 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:35,698 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,700 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 230 treesize of output 235 [2018-11-18 14:36:35,700 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,741 INFO L267 ElimStorePlain]: Start of recursive call 25: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:35,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,823 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 209 [2018-11-18 14:36:35,860 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 9 treesize of output 8 [2018-11-18 14:36:35,860 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,877 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:35,877 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,878 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,878 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,881 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 211 [2018-11-18 14:36:35,890 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:35,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:35,893 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,898 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,915 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,916 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,916 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,918 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 187 [2018-11-18 14:36:35,926 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,932 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 25 [2018-11-18 14:36:35,933 INFO L267 ElimStorePlain]: Start of recursive call 34: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 14:36:35,954 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,956 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:35,959 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 157 treesize of output 289 [2018-11-18 14:36:35,960 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,969 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 6 treesize of output 1 [2018-11-18 14:36:35,969 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,971 INFO L267 ElimStorePlain]: Start of recursive call 33: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,973 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,977 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:35,980 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:35,985 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 209 [2018-11-18 14:36:36,031 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 9 treesize of output 8 [2018-11-18 14:36:36,031 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:36,049 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,049 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,049 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,053 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 219 [2018-11-18 14:36:36,061 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:36,064 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,065 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 24 treesize of output 31 [2018-11-18 14:36:36,065 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,071 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,088 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,089 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,089 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,091 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 187 [2018-11-18 14:36:36,098 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,104 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 25 [2018-11-18 14:36:36,105 INFO L267 ElimStorePlain]: Start of recursive call 43: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-11-18 14:36:36,121 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:36,121 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,124 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 157 treesize of output 150 [2018-11-18 14:36:36,124 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,131 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 6 treesize of output 1 [2018-11-18 14:36:36,131 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,133 INFO L267 ElimStorePlain]: Start of recursive call 42: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,134 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,138 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,182 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,183 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,183 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 213 [2018-11-18 14:36:36,236 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 9 treesize of output 8 [2018-11-18 14:36:36,236 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,253 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,254 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,254 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,255 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,255 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,257 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:36,261 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,266 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:36,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 202 treesize of output 236 [2018-11-18 14:36:36,309 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 201 treesize of output 246 [2018-11-18 14:36:36,900 WARN L180 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 233 [2018-11-18 14:36:36,902 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:36:36,902 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,906 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:36,906 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 334 treesize of output 613 [2018-11-18 14:36:36,906 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:36,910 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:36,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 616 [2018-11-18 14:36:36,911 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,237 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 190 treesize of output 181 [2018-11-18 14:36:37,237 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:37,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:37,354 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 0 case distinctions, treesize of input 181 treesize of output 606 [2018-11-18 14:36:37,354 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,467 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 196 treesize of output 187 [2018-11-18 14:36:37,468 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,571 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:37,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 745 [2018-11-18 14:36:37,573 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,698 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:37,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 192 [2018-11-18 14:36:37,699 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:37,915 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 454 treesize of output 453 [2018-11-18 14:36:37,915 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,052 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,053 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,054 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 194 [2018-11-18 14:36:38,055 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,123 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,124 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 179 [2018-11-18 14:36:38,124 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,182 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,184 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 180 [2018-11-18 14:36:38,184 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,238 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,239 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 182 [2018-11-18 14:36:38,240 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,290 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,291 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 178 [2018-11-18 14:36:38,293 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,323 INFO L267 ElimStorePlain]: Start of recursive call 49: 4 dim-0 vars, 14 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:38,358 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,359 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,361 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 469 treesize of output 469 [2018-11-18 14:36:38,365 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 6 treesize of output 1 [2018-11-18 14:36:38,365 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,386 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 149 [2018-11-18 14:36:38,387 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,401 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 1 [2018-11-18 14:36:38,401 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,406 INFO L267 ElimStorePlain]: Start of recursive call 64: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,409 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,409 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,409 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,411 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,413 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 189 [2018-11-18 14:36:38,416 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 6 treesize of output 1 [2018-11-18 14:36:38,416 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,433 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,434 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,434 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 13 treesize of output 7 [2018-11-18 14:36:38,434 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,449 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 3 [2018-11-18 14:36:38,449 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,456 INFO L267 ElimStorePlain]: Start of recursive call 68: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,470 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:38,486 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:38,543 INFO L267 ElimStorePlain]: Start of recursive call 22: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:36:38,579 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:36:38,672 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 309 treesize of output 190 [2018-11-18 14:36:38,700 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 9 treesize of output 8 [2018-11-18 14:36:38,700 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,711 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,712 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,730 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 109 [2018-11-18 14:36:38,733 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 95 treesize of output 98 [2018-11-18 14:36:38,735 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 16 treesize of output 17 [2018-11-18 14:36:38,736 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,747 INFO L267 ElimStorePlain]: Start of recursive call 75: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,780 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,781 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 88 treesize of output 94 [2018-11-18 14:36:38,783 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,784 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,785 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 22 treesize of output 27 [2018-11-18 14:36:38,785 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,794 INFO L267 ElimStorePlain]: Start of recursive call 77: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,818 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,823 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 76 [2018-11-18 14:36:38,879 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 9 treesize of output 8 [2018-11-18 14:36:38,879 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,896 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,897 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,898 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2018-11-18 14:36:38,904 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 26 treesize of output 11 [2018-11-18 14:36:38,905 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:38,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,915 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 18 treesize of output 22 [2018-11-18 14:36:38,924 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 6 treesize of output 1 [2018-11-18 14:36:38,924 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,930 INFO L267 ElimStorePlain]: Start of recursive call 83: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,936 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 6 treesize of output 1 [2018-11-18 14:36:38,936 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,940 INFO L267 ElimStorePlain]: Start of recursive call 81: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,944 INFO L267 ElimStorePlain]: Start of recursive call 79: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,959 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 28 treesize of output 24 [2018-11-18 14:36:38,960 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:38,962 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 3 [2018-11-18 14:36:38,962 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,966 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:38,981 INFO L267 ElimStorePlain]: Start of recursive call 74: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:38,993 INFO L267 ElimStorePlain]: Start of recursive call 72: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:39,073 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 178 treesize of output 123 [2018-11-18 14:36:39,114 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 9 treesize of output 8 [2018-11-18 14:36:39,115 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,148 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,149 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,150 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2018-11-18 14:36:39,159 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 12 treesize of output 16 [2018-11-18 14:36:39,177 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 16 treesize of output 17 [2018-11-18 14:36:39,178 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,182 INFO L267 ElimStorePlain]: Start of recursive call 91: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,193 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,193 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,194 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2018-11-18 14:36:39,216 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 9 treesize of output 8 [2018-11-18 14:36:39,217 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,235 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,236 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,236 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-18 14:36:39,242 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 6 treesize of output 1 [2018-11-18 14:36:39,242 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,254 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 4 [2018-11-18 14:36:39,254 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,259 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 6 treesize of output 1 [2018-11-18 14:36:39,259 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,261 INFO L267 ElimStorePlain]: Start of recursive call 95: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,263 INFO L267 ElimStorePlain]: Start of recursive call 93: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,265 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,273 INFO L267 ElimStorePlain]: Start of recursive call 88: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,277 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 178 treesize of output 123 [2018-11-18 14:36:39,309 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 9 treesize of output 8 [2018-11-18 14:36:39,310 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,322 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2018-11-18 14:36:39,332 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 12 treesize of output 16 [2018-11-18 14:36:39,334 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 16 treesize of output 17 [2018-11-18 14:36:39,335 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,338 INFO L267 ElimStorePlain]: Start of recursive call 102: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,350 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,350 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 62 [2018-11-18 14:36:39,373 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 9 treesize of output 8 [2018-11-18 14:36:39,373 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,387 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,388 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,388 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:39,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-18 14:36:39,393 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 6 treesize of output 1 [2018-11-18 14:36:39,393 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,402 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 6 treesize of output 1 [2018-11-18 14:36:39,402 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,408 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 4 [2018-11-18 14:36:39,408 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,409 INFO L267 ElimStorePlain]: Start of recursive call 106: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,411 INFO L267 ElimStorePlain]: Start of recursive call 104: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,412 INFO L267 ElimStorePlain]: Start of recursive call 101: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,420 INFO L267 ElimStorePlain]: Start of recursive call 99: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:39,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 4 dim-2 vars, End of recursive call: 12 dim-0 vars, and 6 xjuncts. [2018-11-18 14:36:39,477 INFO L202 ElimStorePlain]: Needed 109 recursive calls to eliminate 18 variables, input treesize:897, output treesize:178 [2018-11-18 14:36:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 20 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:39,613 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:36:39,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 34 [2018-11-18 14:36:39,614 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:36:39,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 14:36:39,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 14:36:39,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2018-11-18 14:36:39,614 INFO L87 Difference]: Start difference. First operand 303 states and 348 transitions. Second operand 25 states. [2018-11-18 14:36:40,179 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2018-11-18 14:36:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:41,411 INFO L93 Difference]: Finished difference Result 319 states and 367 transitions. [2018-11-18 14:36:41,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 14:36:41,412 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 66 [2018-11-18 14:36:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:41,413 INFO L225 Difference]: With dead ends: 319 [2018-11-18 14:36:41,413 INFO L226 Difference]: Without dead ends: 316 [2018-11-18 14:36:41,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 117 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=246, Invalid=1646, Unknown=0, NotChecked=0, Total=1892 [2018-11-18 14:36:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-11-18 14:36:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 306. [2018-11-18 14:36:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-11-18 14:36:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 351 transitions. [2018-11-18 14:36:41,431 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 351 transitions. Word has length 66 [2018-11-18 14:36:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:41,432 INFO L480 AbstractCegarLoop]: Abstraction has 306 states and 351 transitions. [2018-11-18 14:36:41,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 14:36:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 351 transitions. [2018-11-18 14:36:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-18 14:36:41,433 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:41,433 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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, 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 14:36:41,433 INFO L423 AbstractCegarLoop]: === Iteration 25 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:41,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:41,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1496523174, now seen corresponding path program 1 times [2018-11-18 14:36:41,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:41,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:41,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:41,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:41,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 14:36:41,526 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:41,526 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:36:41,526 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2018-11-18 14:36:41,526 INFO L202 CegarAbsIntRunner]: [2], [6], [10], [12], [15], [23], [24], [25], [29], [35], [39], [47], [50], [132], [138], [142], [150], [156], [160], [168], [174], [178], [186], [192], [196], [202], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [240], [242], [245], [247], [249], [270], [274], [277], [360], [363], [364], [432], [433], [434], [435], [436], [438], [450], [451], [452] [2018-11-18 14:36:41,528 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:36:41,528 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:36:41,555 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 14:36:41,556 INFO L272 AbstractInterpreter]: Visited 54 different actions 63 times. Merged at 8 different actions 8 times. Never widened. Performed 384 root evaluator evaluations with a maximum evaluation depth of 3. Performed 384 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 30 variables. [2018-11-18 14:36:41,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:41,571 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 14:36:41,640 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 80.42% of their original sizes. [2018-11-18 14:36:41,640 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 14:36:41,722 INFO L415 sIntCurrentIteration]: We unified 69 AI predicates to 69 [2018-11-18 14:36:41,722 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 14:36:41,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 14:36:41,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [9] total 24 [2018-11-18 14:36:41,722 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:36:41,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 14:36:41,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 14:36:41,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:36:41,723 INFO L87 Difference]: Start difference. First operand 306 states and 351 transitions. Second operand 17 states. [2018-11-18 14:36:42,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:42,788 INFO L93 Difference]: Finished difference Result 419 states and 488 transitions. [2018-11-18 14:36:42,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:36:42,788 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 70 [2018-11-18 14:36:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:42,789 INFO L225 Difference]: With dead ends: 419 [2018-11-18 14:36:42,789 INFO L226 Difference]: Without dead ends: 339 [2018-11-18 14:36:42,789 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 77 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-11-18 14:36:42,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-11-18 14:36:42,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 297. [2018-11-18 14:36:42,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-11-18 14:36:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 330 transitions. [2018-11-18 14:36:42,809 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 330 transitions. Word has length 70 [2018-11-18 14:36:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:42,809 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 330 transitions. [2018-11-18 14:36:42,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 14:36:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 330 transitions. [2018-11-18 14:36:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 14:36:42,810 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:42,810 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:36:42,810 INFO L423 AbstractCegarLoop]: === Iteration 26 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:42,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:42,810 INFO L82 PathProgramCache]: Analyzing trace with hash 396527173, now seen corresponding path program 1 times [2018-11-18 14:36:42,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:42,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:42,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,811 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:42,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:36:42,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:36:42,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:36:42,848 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:36:42,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:36:42,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:36:42,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:36:42,849 INFO L87 Difference]: Start difference. First operand 297 states and 330 transitions. Second operand 3 states. [2018-11-18 14:36:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:42,869 INFO L93 Difference]: Finished difference Result 382 states and 442 transitions. [2018-11-18 14:36:42,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:36:42,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-11-18 14:36:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:42,871 INFO L225 Difference]: With dead ends: 382 [2018-11-18 14:36:42,871 INFO L226 Difference]: Without dead ends: 298 [2018-11-18 14:36:42,872 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:36:42,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-11-18 14:36:42,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2018-11-18 14:36:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-18 14:36:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 331 transitions. [2018-11-18 14:36:42,888 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 331 transitions. Word has length 72 [2018-11-18 14:36:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:42,888 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 331 transitions. [2018-11-18 14:36:42,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:36:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 331 transitions. [2018-11-18 14:36:42,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-18 14:36:42,889 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:42,889 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:36:42,890 INFO L423 AbstractCegarLoop]: === Iteration 27 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:42,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:42,890 INFO L82 PathProgramCache]: Analyzing trace with hash 615381891, now seen corresponding path program 1 times [2018-11-18 14:36:42,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:42,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:42,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,891 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 14:36:42,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:36:42,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:36:42,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:36:42,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:36:42,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:36:42,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:36:42,972 INFO L87 Difference]: Start difference. First operand 298 states and 331 transitions. Second operand 9 states. [2018-11-18 14:36:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:43,103 INFO L93 Difference]: Finished difference Result 341 states and 384 transitions. [2018-11-18 14:36:43,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 14:36:43,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2018-11-18 14:36:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:43,106 INFO L225 Difference]: With dead ends: 341 [2018-11-18 14:36:43,106 INFO L226 Difference]: Without dead ends: 338 [2018-11-18 14:36:43,107 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:36:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-11-18 14:36:43,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 307. [2018-11-18 14:36:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2018-11-18 14:36:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 342 transitions. [2018-11-18 14:36:43,124 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 342 transitions. Word has length 72 [2018-11-18 14:36:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:43,125 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 342 transitions. [2018-11-18 14:36:43,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:36:43,125 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 342 transitions. [2018-11-18 14:36:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 14:36:43,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:43,126 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:36:43,126 INFO L423 AbstractCegarLoop]: === Iteration 28 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:43,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,126 INFO L82 PathProgramCache]: Analyzing trace with hash -272096299, now seen corresponding path program 1 times [2018-11-18 14:36:43,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:43,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,127 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 14:36:43,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:36:43,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:36:43,169 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:36:43,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:36:43,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:36:43,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:36:43,170 INFO L87 Difference]: Start difference. First operand 307 states and 342 transitions. Second operand 5 states. [2018-11-18 14:36:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:43,250 INFO L93 Difference]: Finished difference Result 309 states and 343 transitions. [2018-11-18 14:36:43,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:36:43,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-11-18 14:36:43,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:43,252 INFO L225 Difference]: With dead ends: 309 [2018-11-18 14:36:43,252 INFO L226 Difference]: Without dead ends: 289 [2018-11-18 14:36:43,252 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:36:43,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-11-18 14:36:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 258. [2018-11-18 14:36:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-11-18 14:36:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 290 transitions. [2018-11-18 14:36:43,269 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 290 transitions. Word has length 71 [2018-11-18 14:36:43,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:43,270 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 290 transitions. [2018-11-18 14:36:43,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:36:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 290 transitions. [2018-11-18 14:36:43,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-18 14:36:43,271 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:43,271 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:36:43,271 INFO L423 AbstractCegarLoop]: === Iteration 29 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:43,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,271 INFO L82 PathProgramCache]: Analyzing trace with hash 613115572, now seen corresponding path program 1 times [2018-11-18 14:36:43,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:43,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,364 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:43,364 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:36:43,364 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 78 with the following transitions: [2018-11-18 14:36:43,364 INFO L202 CegarAbsIntRunner]: [2], [6], [10], [12], [17], [19], [23], [24], [25], [29], [35], [39], [47], [50], [132], [138], [142], [150], [156], [160], [168], [174], [178], [186], [192], [196], [202], [203], [207], [209], [212], [214], [219], [221], [226], [228], [235], [240], [242], [245], [247], [249], [270], [274], [280], [284], [292], [298], [302], [310], [313], [360], [363], [364], [365], [369], [371], [376], [380], [407], [408], [412], [413], [432], [433], [434], [435], [436], [442], [450], [451], [452] [2018-11-18 14:36:43,368 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 14:36:43,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 14:36:43,520 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 14:36:43,520 INFO L272 AbstractInterpreter]: Visited 72 different actions 239 times. Merged at 22 different actions 61 times. Never widened. Performed 2799 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2799 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 9 fixpoints after 3 different actions. Largest state had 32 variables. [2018-11-18 14:36:43,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,531 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 14:36:43,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:43,531 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:36:43,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,548 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 14:36:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,613 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 14 treesize of output 11 [2018-11-18 14:36:43,614 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 11 treesize of output 14 [2018-11-18 14:36:43,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 14:36:43,617 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,621 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,624 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,632 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 14 treesize of output 11 [2018-11-18 14:36:43,634 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 11 treesize of output 14 [2018-11-18 14:36:43,636 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 14 treesize of output 15 [2018-11-18 14:36:43,636 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,640 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,643 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,649 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:32, output treesize:18 [2018-11-18 14:36:43,695 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 15 treesize of output 11 [2018-11-18 14:36:43,698 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 11 treesize of output 3 [2018-11-18 14:36:43,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,708 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 15 treesize of output 11 [2018-11-18 14:36:43,710 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 11 treesize of output 3 [2018-11-18 14:36:43,710 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,713 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,716 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:43,716 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:36:43,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:36:43,735 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:36:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:36:43,778 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 14:36:43,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 5] total 18 [2018-11-18 14:36:43,779 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 14:36:43,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 14:36:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 14:36:43,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=264, Unknown=1, NotChecked=0, Total=306 [2018-11-18 14:36:43,779 INFO L87 Difference]: Start difference. First operand 258 states and 290 transitions. Second operand 17 states. [2018-11-18 14:36:44,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:44,548 INFO L93 Difference]: Finished difference Result 413 states and 506 transitions. [2018-11-18 14:36:44,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-18 14:36:44,550 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 77 [2018-11-18 14:36:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:36:44,551 INFO L225 Difference]: With dead ends: 413 [2018-11-18 14:36:44,551 INFO L226 Difference]: Without dead ends: 297 [2018-11-18 14:36:44,552 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=654, Unknown=2, NotChecked=0, Total=756 [2018-11-18 14:36:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-11-18 14:36:44,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 271. [2018-11-18 14:36:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-11-18 14:36:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 322 transitions. [2018-11-18 14:36:44,571 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 322 transitions. Word has length 77 [2018-11-18 14:36:44,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:36:44,572 INFO L480 AbstractCegarLoop]: Abstraction has 271 states and 322 transitions. [2018-11-18 14:36:44,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 14:36:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 322 transitions. [2018-11-18 14:36:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-18 14:36:44,573 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:36:44,573 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2018-11-18 14:36:44,573 INFO L423 AbstractCegarLoop]: === Iteration 30 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:36:44,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:44,573 INFO L82 PathProgramCache]: Analyzing trace with hash -188829725, now seen corresponding path program 3 times [2018-11-18 14:36:44,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:36:44,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:44,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:44,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:44,574 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:36:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:45,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:45,304 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 14:36:45,304 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-18 14:36:45,304 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-18 14:36:45,304 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:36:45,304 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:36:45,312 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 14:36:45,312 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-11-18 14:36:45,341 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 14:36:45,342 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 14:36:45,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:45,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:36:45,374 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,378 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 14:36:45,398 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 14 treesize of output 11 [2018-11-18 14:36:45,400 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 11 treesize of output 14 [2018-11-18 14:36:45,401 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 14 treesize of output 15 [2018-11-18 14:36:45,402 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,404 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,412 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:27, output treesize:17 [2018-11-18 14:36:45,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,418 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 17 treesize of output 21 [2018-11-18 14:36:45,418 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,424 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:26 [2018-11-18 14:36:45,449 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,450 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,451 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,451 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 22 treesize of output 34 [2018-11-18 14:36:45,451 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 14:36:45,472 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 8 treesize of output 7 [2018-11-18 14:36:45,472 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,476 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,488 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:55, output treesize:53 [2018-11-18 14:36:45,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2018-11-18 14:36:45,531 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 14:36:45,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2018-11-18 14:36:45,533 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,537 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,545 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-18 14:36:45,565 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 11 treesize of output 14 [2018-11-18 14:36:45,568 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 14 treesize of output 15 [2018-11-18 14:36:45,568 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,571 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,574 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,591 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:78, output treesize:93 [2018-11-18 14:36:45,630 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,631 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,632 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 83 [2018-11-18 14:36:45,634 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,654 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:104, output treesize:118 [2018-11-18 14:36:45,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,704 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,705 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,706 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,707 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:45,708 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 73 [2018-11-18 14:36:45,708 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-18 14:36:45,744 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 8 treesize of output 7 [2018-11-18 14:36:45,744 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,750 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 106 [2018-11-18 14:36:45,788 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 8 treesize of output 7 [2018-11-18 14:36:45,788 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,801 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,824 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:148, output treesize:131 [2018-11-18 14:36:45,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 53 [2018-11-18 14:36:45,891 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 11 treesize of output 14 [2018-11-18 14:36:45,894 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 14 treesize of output 15 [2018-11-18 14:36:45,894 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,900 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,929 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:45,999 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:46,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 136 [2018-11-18 14:36:46,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-18 14:36:46,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-11-18 14:36:46,014 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,019 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,038 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,068 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:156, output treesize:227 [2018-11-18 14:36:46,308 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:46,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 100 [2018-11-18 14:36:46,314 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 33 [2018-11-18 14:36:46,315 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:46,326 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 5 treesize of output 1 [2018-11-18 14:36:46,327 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,335 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2018-11-18 14:36:46,335 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:46,341 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:46,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-18 14:36:46,362 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:258, output treesize:193 [2018-11-18 14:36:46,545 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:46,547 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:46,551 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:46,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 133 [2018-11-18 14:36:46,569 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 59 [2018-11-18 14:36:46,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,584 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 5 treesize of output 1 [2018-11-18 14:36:46,584 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,594 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 5 treesize of output 1 [2018-11-18 14:36:46,594 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,602 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 17 treesize of output 4 [2018-11-18 14:36:46,603 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-18 14:36:46,609 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:46,611 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:209, output treesize:4 [2018-11-18 14:36:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:46,657 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:36:47,634 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-11-18 14:36:47,640 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 497 treesize of output 451 [2018-11-18 14:36:47,710 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 426 treesize of output 423 [2018-11-18 14:36:47,713 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:47,715 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 420 treesize of output 420 [2018-11-18 14:36:47,715 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:47,736 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:47,737 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:36:47,737 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:47,756 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:47,780 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 418 [2018-11-18 14:36:48,002 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2018-11-18 14:36:48,004 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,023 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 4 case distinctions, treesize of input 389 treesize of output 409 [2018-11-18 14:36:48,023 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:36:48,201 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 1 case distinctions, treesize of input 391 treesize of output 387 [2018-11-18 14:36:48,204 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,206 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 375 treesize of output 358 [2018-11-18 14:36:48,206 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:48,247 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 378 treesize of output 373 [2018-11-18 14:36:48,266 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 4 xjuncts. [2018-11-18 14:36:48,347 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:36:48,350 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,353 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 404 treesize of output 395 [2018-11-18 14:36:48,356 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,357 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,371 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 381 treesize of output 396 [2018-11-18 14:36:48,528 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2018-11-18 14:36:48,531 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,542 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 1 case distinctions, treesize of input 378 treesize of output 365 [2018-11-18 14:36:48,543 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-18 14:36:48,587 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,587 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,588 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:48,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 189 [2018-11-18 14:36:48,591 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:48,617 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:48,644 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:48,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 385 treesize of output 377 [2018-11-18 14:36:48,821 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:48,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 367 treesize of output 356 [2018-11-18 14:36:48,824 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:48,835 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:48,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 381 treesize of output 373 [2018-11-18 14:36:48,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 369 treesize of output 357 [2018-11-18 14:36:48,850 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-11-18 14:36:48,877 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:48,986 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:36:49,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:36:49,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 5 xjuncts. [2018-11-18 14:36:49,212 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 4 variables, input treesize:532, output treesize:1233 [2018-11-18 14:36:51,678 WARN L180 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 152 [2018-11-18 14:36:54,023 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2018-11-18 14:36:54,029 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 1239 treesize of output 773 [2018-11-18 14:36:54,082 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:36:54,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,085 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 552 treesize of output 507 [2018-11-18 14:36:54,088 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,089 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 504 treesize of output 462 [2018-11-18 14:36:54,090 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,104 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,119 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,135 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 457 treesize of output 348 [2018-11-18 14:36:54,273 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-11-18 14:36:54,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,301 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 4 case distinctions, treesize of input 256 treesize of output 276 [2018-11-18 14:36:54,302 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:36:54,303 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:36:54,303 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,420 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,420 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,424 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 252 treesize of output 198 [2018-11-18 14:36:54,453 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 191 [2018-11-18 14:36:54,457 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 17 [2018-11-18 14:36:54,457 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,476 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,558 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,558 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,565 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:54,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 174 treesize of output 222 [2018-11-18 14:36:54,589 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,589 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:54,590 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,591 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 206 treesize of output 243 [2018-11-18 14:36:54,591 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,710 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,711 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,711 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,713 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:54,713 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,714 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 188 treesize of output 223 [2018-11-18 14:36:54,714 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,841 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,842 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,842 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,844 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,845 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:54,848 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,850 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,853 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 1 case distinctions, treesize of input 190 treesize of output 242 [2018-11-18 14:36:54,853 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:54,966 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,967 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,967 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,969 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,970 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,971 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:54,972 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,974 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:54,977 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 1 case distinctions, treesize of input 194 treesize of output 246 [2018-11-18 14:36:54,977 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,063 INFO L267 ElimStorePlain]: Start of recursive call 12: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:36:55,223 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,223 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,224 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 153 [2018-11-18 14:36:55,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 14:36:55,313 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,346 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:55,347 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,347 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,348 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,349 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,354 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 148 [2018-11-18 14:36:55,366 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:55,369 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 31 [2018-11-18 14:36:55,370 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,376 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,403 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,406 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 100 [2018-11-18 14:36:55,414 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:55,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-11-18 14:36:55,417 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,441 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,441 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 13 treesize of output 3 [2018-11-18 14:36:55,442 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,454 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 6 treesize of output 1 [2018-11-18 14:36:55,455 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,465 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,469 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 44 [2018-11-18 14:36:55,474 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,505 INFO L267 ElimStorePlain]: Start of recursive call 22: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,521 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,539 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,541 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,542 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,542 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 151 [2018-11-18 14:36:55,621 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 9 treesize of output 8 [2018-11-18 14:36:55,621 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,652 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:55,653 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,653 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,654 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,654 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,655 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,655 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,659 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 149 [2018-11-18 14:36:55,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:55,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:36:55,673 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,679 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,708 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,708 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,709 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,710 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,710 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,710 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 94 [2018-11-18 14:36:55,718 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 6 treesize of output 1 [2018-11-18 14:36:55,718 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,743 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 14:36:55,748 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,765 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,765 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 13 treesize of output 3 [2018-11-18 14:36:55,765 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,778 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,778 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,778 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,779 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-18 14:36:55,779 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,789 INFO L267 ElimStorePlain]: Start of recursive call 32: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,799 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,812 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:36:55,814 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,815 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,815 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 147 [2018-11-18 14:36:55,932 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-11-18 14:36:55,935 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 9 treesize of output 8 [2018-11-18 14:36:55,935 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,965 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:36:55,966 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,966 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,967 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,967 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,968 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,968 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,973 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,981 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 141 [2018-11-18 14:36:55,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 32 [2018-11-18 14:36:55,986 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:55,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 38 [2018-11-18 14:36:55,987 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:55,994 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,018 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,018 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,018 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,019 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,019 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,020 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,020 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,025 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 89 [2018-11-18 14:36:56,028 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 6 treesize of output 1 [2018-11-18 14:36:56,028 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,054 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,054 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 3 [2018-11-18 14:36:56,054 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,073 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,074 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-18 14:36:56,074 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,086 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,086 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 13 treesize of output 3 [2018-11-18 14:36:56,086 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,091 INFO L267 ElimStorePlain]: Start of recursive call 42: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,094 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,100 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,190 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,190 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,195 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 178 treesize of output 143 [2018-11-18 14:36:56,415 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2018-11-18 14:36:56,418 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 131 treesize of output 130 [2018-11-18 14:36:56,419 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,422 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 114 treesize of output 113 [2018-11-18 14:36:56,423 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-11-18 14:36:56,617 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:36:56,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 12 case distinctions, treesize of input 97 treesize of output 175 [2018-11-18 14:36:56,678 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-18 14:36:56,690 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:36:56,691 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:00,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:00,154 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:00,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:00,157 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 132 treesize of output 148 [2018-11-18 14:37:00,157 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:01,992 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:01,992 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:01,994 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:01,995 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 103 treesize of output 119 [2018-11-18 14:37:01,995 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:02,874 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:02,875 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:02,877 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:02,878 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 128 treesize of output 141 [2018-11-18 14:37:02,878 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:03,742 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:03,751 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:03,766 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 6 case distinctions, treesize of input 118 treesize of output 147 [2018-11-18 14:37:03,767 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:04,663 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:04,673 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:04,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 134 [2018-11-18 14:37:04,691 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:06,485 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:06,486 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:06,492 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:06,492 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 116 treesize of output 132 [2018-11-18 14:37:06,493 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:09,139 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,139 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,142 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,142 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 99 treesize of output 115 [2018-11-18 14:37:09,142 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:09,987 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,987 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,989 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:09,990 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 116 treesize of output 132 [2018-11-18 14:37:09,990 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:12,489 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:12,493 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:12,498 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:12,512 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 6 case distinctions, treesize of input 130 treesize of output 163 [2018-11-18 14:37:12,513 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:15,987 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:15,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:15,991 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:15,991 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 116 treesize of output 129 [2018-11-18 14:37:15,992 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:19,337 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:19,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:19,340 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:19,340 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 128 treesize of output 141 [2018-11-18 14:37:19,341 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:21,831 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:21,839 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:21,853 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 6 case distinctions, treesize of input 118 treesize of output 147 [2018-11-18 14:37:21,854 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:23,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:23,538 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:23,553 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 6 case distinctions, treesize of input 101 treesize of output 130 [2018-11-18 14:37:23,554 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:25,532 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:25,533 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:25,536 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:25,536 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 116 treesize of output 129 [2018-11-18 14:37:25,537 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:26,598 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:26,604 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:26,609 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:26,627 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 6 case distinctions, treesize of input 134 treesize of output 167 [2018-11-18 14:37:26,628 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:32,775 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:32,776 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:32,778 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:32,779 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 99 treesize of output 112 [2018-11-18 14:37:32,779 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:33,527 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:33,527 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:33,530 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:33,530 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 120 treesize of output 136 [2018-11-18 14:37:33,531 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:34,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:35,006 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:35,019 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 6 case distinctions, treesize of input 122 treesize of output 151 [2018-11-18 14:37:35,020 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 4 xjuncts. [2018-11-18 14:37:36,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:36,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:36,450 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:36,450 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 103 treesize of output 116 [2018-11-18 14:37:36,451 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:37,086 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:37,087 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:37,089 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:37,090 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 99 treesize of output 112 [2018-11-18 14:37:37,090 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:40,085 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:40,086 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:40,088 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:40,089 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 132 treesize of output 145 [2018-11-18 14:37:40,089 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:42,139 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:42,140 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:42,142 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:42,143 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 120 treesize of output 133 [2018-11-18 14:37:42,143 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:46,248 INFO L267 ElimStorePlain]: Start of recursive call 50: 64 dim-1 vars, End of recursive call: and 20 xjuncts. [2018-11-18 14:37:46,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,978 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,978 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,980 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:46,980 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,980 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,981 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,987 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:46,999 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 126 [2018-11-18 14:37:47,002 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,002 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,012 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:47,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 142 [2018-11-18 14:37:47,328 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 157 [2018-11-18 14:37:47,329 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:37:47,329 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,332 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,332 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,335 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,335 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,336 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 138 [2018-11-18 14:37:47,339 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,476 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,477 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,477 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,477 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 0 case distinctions, treesize of input 85 treesize of output 105 [2018-11-18 14:37:47,478 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,586 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 0 case distinctions, treesize of input 89 treesize of output 109 [2018-11-18 14:37:47,586 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,691 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,692 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,692 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,692 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,693 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,693 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 141 [2018-11-18 14:37:47,694 INFO L267 ElimStorePlain]: Start of recursive call 80: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,799 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,799 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,799 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,801 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,801 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:47,806 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 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 14:37:47,807 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:47,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,913 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,914 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,915 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:47,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 145 [2018-11-18 14:37:47,916 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,016 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,016 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,018 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,018 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:48,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 158 [2018-11-18 14:37:48,025 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,124 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,124 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,124 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,125 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,125 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 137 [2018-11-18 14:37:48,128 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,203 INFO L267 ElimStorePlain]: Start of recursive call 75: 8 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:37:48,279 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,280 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,281 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,281 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,281 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,282 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,283 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,284 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 109 [2018-11-18 14:37:48,290 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,290 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,295 INFO L477 Elim1Store]: Elim1 applied some 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2018-11-18 14:37:48,296 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-18 14:37:48,322 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,323 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,324 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2018-11-18 14:37:48,324 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,340 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 6 treesize of output 1 [2018-11-18 14:37:48,340 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,350 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,351 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,351 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,351 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,352 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,352 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-11-18 14:37:48,353 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,363 INFO L267 ElimStorePlain]: Start of recursive call 85: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,366 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,366 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,366 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,367 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,367 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,367 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,368 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 118 [2018-11-18 14:37:48,376 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 6 treesize of output 1 [2018-11-18 14:37:48,376 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,403 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,403 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,404 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 38 [2018-11-18 14:37:48,409 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,431 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,431 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,431 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,432 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,432 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,432 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,433 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,435 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,435 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 35 [2018-11-18 14:37:48,436 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,454 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,456 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:48,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-11-18 14:37:48,456 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,463 INFO L267 ElimStorePlain]: Start of recursive call 90: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,466 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,466 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,467 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,468 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,468 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 108 [2018-11-18 14:37:48,476 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 16 [2018-11-18 14:37:48,481 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 2 xjuncts. [2018-11-18 14:37:48,510 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,512 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,512 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,514 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2018-11-18 14:37:48,515 INFO L267 ElimStorePlain]: Start of recursive call 97: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,533 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 6 treesize of output 1 [2018-11-18 14:37:48,533 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,546 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,546 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,546 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,547 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,547 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,547 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,548 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-11-18 14:37:48,548 INFO L267 ElimStorePlain]: Start of recursive call 99: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,561 INFO L267 ElimStorePlain]: Start of recursive call 95: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:37:48,579 INFO L267 ElimStorePlain]: Start of recursive call 74: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:37:48,582 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,587 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,588 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:48,591 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,598 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 121 treesize of output 139 [2018-11-18 14:37:48,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:37:48,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:37:48,625 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,632 INFO L267 ElimStorePlain]: Start of recursive call 101: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,665 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,667 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,667 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,667 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,668 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,668 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,669 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,671 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,671 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 117 [2018-11-18 14:37:48,696 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 86 treesize of output 80 [2018-11-18 14:37:48,696 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,821 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 71 treesize of output 65 [2018-11-18 14:37:48,821 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,891 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,891 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 53 treesize of output 44 [2018-11-18 14:37:48,892 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:48,964 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:48,965 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 65 treesize of output 56 [2018-11-18 14:37:48,965 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:49,031 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:37:49,263 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:37:49,263 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_prenex_202 term size 46 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.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java: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 14:37:49,266 INFO L168 Benchmark]: Toolchain (without parser) took 165242.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 441.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:37:49,267 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:37:49,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:37:49,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:37:49,267 INFO L168 Benchmark]: Boogie Preprocessor took 35.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:37:49,267 INFO L168 Benchmark]: RCFGBuilder took 557.66 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:37:49,268 INFO L168 Benchmark]: TraceAbstraction took 164235.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.4 MB). Peak memory consumption was 419.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:37:49,269 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 557.66 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 164235.17 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.4 MB). Peak memory consumption was 419.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_prenex_202 term size 46 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_prenex_202 term size 46: 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 14:37:50,615 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:37:50,616 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:37:50,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:37:50,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:37:50,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:37:50,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:37:50,628 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:37:50,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:37:50,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:37:50,630 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:37:50,630 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:37:50,631 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:37:50,632 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:37:50,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:37:50,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:37:50,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:37:50,636 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:37:50,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:37:50,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:37:50,639 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:37:50,640 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:37:50,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:37:50,642 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:37:50,642 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:37:50,643 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:37:50,644 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:37:50,645 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:37:50,645 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:37:50,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:37:50,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:37:50,646 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:37:50,647 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:37:50,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:37:50,648 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:37:50,648 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:37:50,649 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:37:50,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:37:50,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:37:50,660 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:37:50,660 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:37:50,660 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:37:50,660 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:37:50,661 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:37:50,661 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:37:50,661 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:37:50,661 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:37:50,662 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:37:50,662 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:37:50,664 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:37:50,664 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:37:50,664 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:37:50,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:37:50,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:37:50,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:37:50,666 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:37:50,667 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_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 -> e6399ca05df7547b7620299987a8a06e9e2c006b [2018-11-18 14:37:50,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:37:50,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:37:50,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:37:50,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:37:50,710 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:37:50,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/../../sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:37:50,752 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/1a966950a/64bf48b404f14db7947ab1d540c6173b/FLAGd4d38c5d7 [2018-11-18 14:37:51,180 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:37:51,180 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/sv-benchmarks/c/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:37:51,189 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/1a966950a/64bf48b404f14db7947ab1d540c6173b/FLAGd4d38c5d7 [2018-11-18 14:37:51,197 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/data/1a966950a/64bf48b404f14db7947ab1d540c6173b [2018-11-18 14:37:51,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:37:51,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:37:51,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:37:51,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:37:51,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:37:51,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60166ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51, skipping insertion in model container [2018-11-18 14:37:51,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:37:51,245 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:37:51,486 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:37:51,496 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:37:51,583 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:37:51,620 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:37:51,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51 WrapperNode [2018-11-18 14:37:51,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:37:51,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:37:51,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:37:51,621 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:37:51,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:37:51,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:37:51,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:37:51,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:37:51,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... [2018-11-18 14:37:51,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:37:51,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:37:51,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:37:51,676 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:37:51,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2018-11-18 14:37:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-11-18 14:37:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2018-11-18 14:37:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-11-18 14:37:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:37:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:37:51,707 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-11-18 14:37:51,707 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-11-18 14:37:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2018-11-18 14:37:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2018-11-18 14:37:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:37:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:37:51,708 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2018-11-18 14:37:51,708 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-11-18 14:37:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:37:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:37:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 14:37:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 14:37:51,709 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-11-18 14:37:51,709 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-11-18 14:37:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:37:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:37:51,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:37:51,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:37:52,182 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:37:52,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:37:52 BoogieIcfgContainer [2018-11-18 14:37:52,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:37:52,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:37:52,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:37:52,186 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:37:52,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:37:51" (1/3) ... [2018-11-18 14:37:52,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b7113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:37:52, skipping insertion in model container [2018-11-18 14:37:52,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:37:51" (2/3) ... [2018-11-18 14:37:52,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b7113f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:37:52, skipping insertion in model container [2018-11-18 14:37:52,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:37:52" (3/3) ... [2018-11-18 14:37:52,189 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-11-18 14:37:52,196 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:37:52,201 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:37:52,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:37:52,227 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:37:52,227 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:37:52,227 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:37:52,227 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:37:52,227 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:37:52,227 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:37:52,228 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:37:52,228 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:37:52,228 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:37:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2018-11-18 14:37:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 14:37:52,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:52,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:37:52,244 INFO L423 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:52,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:52,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2138400613, now seen corresponding path program 1 times [2018-11-18 14:37:52,250 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:52,250 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:52,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:52,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:52,311 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 14:37:52,311 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:52,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:52,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:37:52,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:37:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:37:52,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:37:52,325 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2018-11-18 14:37:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:52,354 INFO L93 Difference]: Finished difference Result 238 states and 389 transitions. [2018-11-18 14:37:52,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:37:52,355 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 14:37:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:52,365 INFO L225 Difference]: With dead ends: 238 [2018-11-18 14:37:52,365 INFO L226 Difference]: Without dead ends: 110 [2018-11-18 14:37:52,368 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 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 14:37:52,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-11-18 14:37:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-11-18 14:37:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-11-18 14:37:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2018-11-18 14:37:52,399 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 14 [2018-11-18 14:37:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:52,399 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2018-11-18 14:37:52,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:37:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2018-11-18 14:37:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 14:37:52,400 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:52,400 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:37:52,400 INFO L423 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:52,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:52,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1535089876, now seen corresponding path program 1 times [2018-11-18 14:37:52,401 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:52,401 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:52,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:52,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:52,448 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 14:37:52,448 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:52,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:52,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:37:52,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:37:52,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:37:52,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:37:52,450 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand 3 states. [2018-11-18 14:37:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:52,487 INFO L93 Difference]: Finished difference Result 214 states and 260 transitions. [2018-11-18 14:37:52,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:37:52,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 14:37:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:52,489 INFO L225 Difference]: With dead ends: 214 [2018-11-18 14:37:52,489 INFO L226 Difference]: Without dead ends: 116 [2018-11-18 14:37:52,491 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:37:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-18 14:37:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2018-11-18 14:37:52,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-18 14:37:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2018-11-18 14:37:52,501 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 15 [2018-11-18 14:37:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:52,501 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2018-11-18 14:37:52,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:37:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2018-11-18 14:37:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:37:52,502 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:52,502 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:37:52,502 INFO L423 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:52,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:52,503 INFO L82 PathProgramCache]: Analyzing trace with hash -768404214, now seen corresponding path program 1 times [2018-11-18 14:37:52,503 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:52,503 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:52,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:52,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:52,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:52,578 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:52,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:52,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:37:52,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:37:52,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:37:52,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:37:52,580 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand 6 states. [2018-11-18 14:37:52,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:52,780 INFO L93 Difference]: Finished difference Result 161 states and 194 transitions. [2018-11-18 14:37:52,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:37:52,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 14:37:52,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:52,782 INFO L225 Difference]: With dead ends: 161 [2018-11-18 14:37:52,783 INFO L226 Difference]: Without dead ends: 156 [2018-11-18 14:37:52,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:37:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-11-18 14:37:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 117. [2018-11-18 14:37:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-11-18 14:37:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2018-11-18 14:37:52,796 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 21 [2018-11-18 14:37:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:52,796 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2018-11-18 14:37:52,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:37:52,797 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2018-11-18 14:37:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 14:37:52,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:52,797 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:37:52,798 INFO L423 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:52,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:52,798 INFO L82 PathProgramCache]: Analyzing trace with hash 54245890, now seen corresponding path program 1 times [2018-11-18 14:37:52,798 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:52,798 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:52,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:52,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:52,908 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 19 treesize of output 15 [2018-11-18 14:37:52,915 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 15 treesize of output 3 [2018-11-18 14:37:52,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:52,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:52,935 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 19 treesize of output 15 [2018-11-18 14:37:52,940 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 15 treesize of output 3 [2018-11-18 14:37:52,940 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:52,942 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:52,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:52,948 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2018-11-18 14:37:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:37:52,970 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:52,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:52,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:37:52,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:37:52,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:37:52,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:37:52,973 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand 5 states. [2018-11-18 14:37:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:53,357 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2018-11-18 14:37:53,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:37:53,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 14:37:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:53,360 INFO L225 Difference]: With dead ends: 119 [2018-11-18 14:37:53,360 INFO L226 Difference]: Without dead ends: 116 [2018-11-18 14:37:53,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:37:53,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-11-18 14:37:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-11-18 14:37:53,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-18 14:37:53,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 138 transitions. [2018-11-18 14:37:53,370 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 138 transitions. Word has length 29 [2018-11-18 14:37:53,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:53,370 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 138 transitions. [2018-11-18 14:37:53,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:37:53,370 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 138 transitions. [2018-11-18 14:37:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 14:37:53,371 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:53,371 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:37:53,371 INFO L423 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:53,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:53,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1734244228, now seen corresponding path program 1 times [2018-11-18 14:37:53,371 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:53,372 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/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 14:37:53,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:53,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:53,447 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 14:37:53,452 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 16 treesize of output 4 [2018-11-18 14:37:53,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,460 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,485 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 14 treesize of output 12 [2018-11-18 14:37:53,488 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 7 treesize of output 1 [2018-11-18 14:37:53,488 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,490 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,506 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 27 [2018-11-18 14:37:53,518 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 7 treesize of output 1 [2018-11-18 14:37:53,519 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,527 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,547 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 20 treesize of output 16 [2018-11-18 14:37:53,550 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 16 treesize of output 4 [2018-11-18 14:37:53,550 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,551 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:53,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:37:53,554 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 14:37:53,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:37:53,569 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:53,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:53,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:37:53,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:37:53,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:37:53,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:37:53,571 INFO L87 Difference]: Start difference. First operand 116 states and 138 transitions. Second operand 5 states. [2018-11-18 14:37:53,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:53,910 INFO L93 Difference]: Finished difference Result 118 states and 139 transitions. [2018-11-18 14:37:53,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:37:53,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-18 14:37:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:53,914 INFO L225 Difference]: With dead ends: 118 [2018-11-18 14:37:53,914 INFO L226 Difference]: Without dead ends: 115 [2018-11-18 14:37:53,915 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:37:53,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-18 14:37:53,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-11-18 14:37:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 14:37:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2018-11-18 14:37:53,923 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 29 [2018-11-18 14:37:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:53,923 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2018-11-18 14:37:53,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:37:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2018-11-18 14:37:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 14:37:53,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:53,924 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:37:53,925 INFO L423 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:53,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:53,925 INFO L82 PathProgramCache]: Analyzing trace with hash 967247928, now seen corresponding path program 1 times [2018-11-18 14:37:53,925 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:53,926 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:37:53,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:53,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:54,011 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 16 treesize of output 13 [2018-11-18 14:37:54,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 14:37:54,017 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:54,019 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 16 treesize of output 23 [2018-11-18 14:37:54,020 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,027 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,032 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,042 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:12 [2018-11-18 14:37:54,072 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 16 treesize of output 12 [2018-11-18 14:37:54,074 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 14:37:54,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,076 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,077 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 14:37:54,077 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 14:37:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:54,085 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:54,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:54,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:37:54,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:37:54,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:37:54,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:37:54,087 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand 8 states. [2018-11-18 14:37:54,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:54,643 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2018-11-18 14:37:54,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:37:54,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-18 14:37:54,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:54,646 INFO L225 Difference]: With dead ends: 151 [2018-11-18 14:37:54,647 INFO L226 Difference]: Without dead ends: 148 [2018-11-18 14:37:54,647 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:37:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-18 14:37:54,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 121. [2018-11-18 14:37:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-18 14:37:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 142 transitions. [2018-11-18 14:37:54,655 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 142 transitions. Word has length 32 [2018-11-18 14:37:54,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:54,655 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 142 transitions. [2018-11-18 14:37:54,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:37:54,655 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 142 transitions. [2018-11-18 14:37:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 14:37:54,656 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:54,656 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:37:54,656 INFO L423 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:54,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:54,656 INFO L82 PathProgramCache]: Analyzing trace with hash -937687358, now seen corresponding path program 1 times [2018-11-18 14:37:54,657 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:54,657 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:37:54,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:54,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:54,734 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 16 treesize of output 13 [2018-11-18 14:37:54,737 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 13 treesize of output 16 [2018-11-18 14:37:54,742 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:54,745 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 16 treesize of output 23 [2018-11-18 14:37:54,745 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,758 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,786 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 16 treesize of output 13 [2018-11-18 14:37:54,792 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 13 treesize of output 16 [2018-11-18 14:37:54,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:54,827 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 16 treesize of output 23 [2018-11-18 14:37:54,828 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,835 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,844 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,865 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,865 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 14:37:54,912 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 15 treesize of output 11 [2018-11-18 14:37:54,914 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 11 treesize of output 3 [2018-11-18 14:37:54,914 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,921 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 15 treesize of output 11 [2018-11-18 14:37:54,922 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 11 treesize of output 3 [2018-11-18 14:37:54,922 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,923 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:54,926 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:37:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:54,938 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:37:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:55,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:37:55,016 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:37:55,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:55,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:55,074 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 16 treesize of output 13 [2018-11-18 14:37:55,077 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 13 treesize of output 16 [2018-11-18 14:37:55,082 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:55,085 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 16 treesize of output 23 [2018-11-18 14:37:55,086 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,095 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,103 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,112 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:21, output treesize:8 [2018-11-18 14:37:55,164 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 16 treesize of output 12 [2018-11-18 14:37:55,166 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 14:37:55,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,167 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:55,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2018-11-18 14:37:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:55,184 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:55,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 14:37:55,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 16 [2018-11-18 14:37:55,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 14:37:55,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 14:37:55,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:37:55,209 INFO L87 Difference]: Start difference. First operand 121 states and 142 transitions. Second operand 16 states. [2018-11-18 14:37:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:57,127 INFO L93 Difference]: Finished difference Result 277 states and 327 transitions. [2018-11-18 14:37:57,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:37:57,128 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 32 [2018-11-18 14:37:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:57,129 INFO L225 Difference]: With dead ends: 277 [2018-11-18 14:37:57,129 INFO L226 Difference]: Without dead ends: 183 [2018-11-18 14:37:57,130 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2018-11-18 14:37:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-18 14:37:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 155. [2018-11-18 14:37:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-11-18 14:37:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 178 transitions. [2018-11-18 14:37:57,138 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 178 transitions. Word has length 32 [2018-11-18 14:37:57,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:57,138 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 178 transitions. [2018-11-18 14:37:57,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 14:37:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 178 transitions. [2018-11-18 14:37:57,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 14:37:57,139 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:57,139 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:37:57,139 INFO L423 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:57,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:57,140 INFO L82 PathProgramCache]: Analyzing trace with hash 198406352, now seen corresponding path program 1 times [2018-11-18 14:37:57,140 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:57,140 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:37:57,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:57,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:57,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:37:57,216 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,219 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:37:57,234 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:57,236 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:57,237 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 13 treesize of output 4 [2018-11-18 14:37:57,237 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:37:57,266 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 8 treesize of output 7 [2018-11-18 14:37:57,267 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,269 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:37:57,284 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 8 treesize of output 7 [2018-11-18 14:37:57,284 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,286 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,294 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,294 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:41, output treesize:25 [2018-11-18 14:37:57,328 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 24 treesize of output 25 [2018-11-18 14:37:57,333 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 13 treesize of output 16 [2018-11-18 14:37:57,338 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:57,341 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 16 treesize of output 23 [2018-11-18 14:37:57,342 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,354 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,369 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,410 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 24 treesize of output 25 [2018-11-18 14:37:57,417 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 13 treesize of output 16 [2018-11-18 14:37:57,427 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:57,430 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 16 treesize of output 23 [2018-11-18 14:37:57,430 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,439 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,447 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,466 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-18 14:37:57,530 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 49 treesize of output 39 [2018-11-18 14:37:57,533 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-11-18 14:37:57,534 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,548 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 24 treesize of output 15 [2018-11-18 14:37:57,548 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,571 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 31 treesize of output 22 [2018-11-18 14:37:57,575 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-18 14:37:57,576 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 14:37:57,583 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,587 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:57,590 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-18 14:37:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:37:57,609 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (10)] Exception during sending of exit command (exit): Broken pipe [2018-11-18 14:37:57,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:57,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:37:57,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:37:57,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:37:57,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:37:57,612 INFO L87 Difference]: Start difference. First operand 155 states and 178 transitions. Second operand 8 states. [2018-11-18 14:37:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:37:58,843 INFO L93 Difference]: Finished difference Result 175 states and 201 transitions. [2018-11-18 14:37:58,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:37:58,843 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2018-11-18 14:37:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:37:58,844 INFO L225 Difference]: With dead ends: 175 [2018-11-18 14:37:58,844 INFO L226 Difference]: Without dead ends: 172 [2018-11-18 14:37:58,844 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:37:58,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-18 14:37:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 158. [2018-11-18 14:37:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-18 14:37:58,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 180 transitions. [2018-11-18 14:37:58,852 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 180 transitions. Word has length 35 [2018-11-18 14:37:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:37:58,852 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 180 transitions. [2018-11-18 14:37:58,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:37:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2018-11-18 14:37:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 14:37:58,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:37:58,853 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2018-11-18 14:37:58,853 INFO L423 AbstractCegarLoop]: === Iteration 9 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:37:58,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:37:58,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1664992896, now seen corresponding path program 1 times [2018-11-18 14:37:58,853 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:37:58,853 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:37:58,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:37:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:37:58,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:37:58,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:37:58,940 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:58,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:58,943 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-18 14:37:58,965 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:58,966 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:58,967 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 13 treesize of output 4 [2018-11-18 14:37:58,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:58,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:37:58,994 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 8 treesize of output 7 [2018-11-18 14:37:58,994 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:58,996 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:37:59,013 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 8 treesize of output 7 [2018-11-18 14:37:59,013 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,015 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,026 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:41, output treesize:25 [2018-11-18 14:37:59,075 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 24 treesize of output 25 [2018-11-18 14:37:59,078 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 13 treesize of output 16 [2018-11-18 14:37:59,083 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:59,088 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 16 treesize of output 23 [2018-11-18 14:37:59,089 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,108 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,177 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 24 treesize of output 29 [2018-11-18 14:37:59,182 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 13 treesize of output 16 [2018-11-18 14:37:59,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:37:59,190 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 16 treesize of output 23 [2018-11-18 14:37:59,191 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,199 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,208 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,227 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:54, output treesize:41 [2018-11-18 14:37:59,301 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 49 treesize of output 39 [2018-11-18 14:37:59,304 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 26 treesize of output 17 [2018-11-18 14:37:59,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,322 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 11 treesize of output 3 [2018-11-18 14:37:59,322 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,327 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,337 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 31 treesize of output 22 [2018-11-18 14:37:59,339 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 11 treesize of output 3 [2018-11-18 14:37:59,339 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,345 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2018-11-18 14:37:59,345 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,346 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:37:59,349 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:68, output treesize:7 [2018-11-18 14:37:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:37:59,367 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:37:59,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:37:59,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:37:59,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:37:59,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:37:59,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:37:59,370 INFO L87 Difference]: Start difference. First operand 158 states and 180 transitions. Second operand 8 states. [2018-11-18 14:38:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:00,442 INFO L93 Difference]: Finished difference Result 174 states and 198 transitions. [2018-11-18 14:38:00,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:38:00,443 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-11-18 14:38:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:00,444 INFO L225 Difference]: With dead ends: 174 [2018-11-18 14:38:00,444 INFO L226 Difference]: Without dead ends: 171 [2018-11-18 14:38:00,445 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:38:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-11-18 14:38:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2018-11-18 14:38:00,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-18 14:38:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2018-11-18 14:38:00,452 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 41 [2018-11-18 14:38:00,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:00,453 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2018-11-18 14:38:00,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:38:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2018-11-18 14:38:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 14:38:00,454 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:00,454 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:38:00,455 INFO L423 AbstractCegarLoop]: === Iteration 10 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:00,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:00,455 INFO L82 PathProgramCache]: Analyzing trace with hash -158728432, now seen corresponding path program 1 times [2018-11-18 14:38:00,455 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:00,455 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:00,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:00,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:00,498 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:38:00,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:38:00,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:38:00,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:38:00,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:38:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:38:00,500 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand 6 states. [2018-11-18 14:38:00,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:00,588 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2018-11-18 14:38:00,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:38:00,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-11-18 14:38:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:00,589 INFO L225 Difference]: With dead ends: 189 [2018-11-18 14:38:00,589 INFO L226 Difference]: Without dead ends: 186 [2018-11-18 14:38:00,590 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:38:00,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-18 14:38:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 168. [2018-11-18 14:38:00,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-18 14:38:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 191 transitions. [2018-11-18 14:38:00,600 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 191 transitions. Word has length 45 [2018-11-18 14:38:00,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:00,601 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 191 transitions. [2018-11-18 14:38:00,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:38:00,601 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 191 transitions. [2018-11-18 14:38:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 14:38:00,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:00,602 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:38:00,603 INFO L423 AbstractCegarLoop]: === Iteration 11 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:00,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:00,603 INFO L82 PathProgramCache]: Analyzing trace with hash 22211117, now seen corresponding path program 1 times [2018-11-18 14:38:00,603 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:00,603 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:00,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:00,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:00,707 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 16 treesize of output 13 [2018-11-18 14:38:00,710 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 13 treesize of output 16 [2018-11-18 14:38:00,713 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:00,716 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 16 treesize of output 23 [2018-11-18 14:38:00,716 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,727 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,757 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 16 treesize of output 13 [2018-11-18 14:38:00,760 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 13 treesize of output 16 [2018-11-18 14:38:00,764 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:00,767 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 16 treesize of output 23 [2018-11-18 14:38:00,767 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,773 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,778 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,788 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 14:38:00,852 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 15 treesize of output 11 [2018-11-18 14:38:00,854 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 11 treesize of output 3 [2018-11-18 14:38:00,854 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,856 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,863 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 15 treesize of output 11 [2018-11-18 14:38:00,864 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 11 treesize of output 3 [2018-11-18 14:38:00,865 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,866 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,869 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:00,869 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:38:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:00,882 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:00,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:38:00,967 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:38:00,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:00,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:01,000 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 16 treesize of output 13 [2018-11-18 14:38:01,003 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 13 treesize of output 16 [2018-11-18 14:38:01,008 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:01,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 14:38:01,011 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,023 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,032 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,053 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 16 treesize of output 13 [2018-11-18 14:38:01,055 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 13 treesize of output 16 [2018-11-18 14:38:01,059 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:01,061 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 16 treesize of output 23 [2018-11-18 14:38:01,061 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,067 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,072 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,082 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:36, output treesize:22 [2018-11-18 14:38:01,116 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 15 treesize of output 11 [2018-11-18 14:38:01,119 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 11 treesize of output 3 [2018-11-18 14:38:01,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,125 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 15 treesize of output 11 [2018-11-18 14:38:01,127 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 11 treesize of output 3 [2018-11-18 14:38:01,127 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,128 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:01,131 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-18 14:38:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:01,135 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:01,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:38:01,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9, 7] total 12 [2018-11-18 14:38:01,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 14:38:01,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 14:38:01,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:38:01,173 INFO L87 Difference]: Start difference. First operand 168 states and 191 transitions. Second operand 12 states. [2018-11-18 14:38:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:04,394 INFO L93 Difference]: Finished difference Result 250 states and 293 transitions. [2018-11-18 14:38:04,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:38:04,395 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-11-18 14:38:04,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:04,396 INFO L225 Difference]: With dead ends: 250 [2018-11-18 14:38:04,396 INFO L226 Difference]: Without dead ends: 247 [2018-11-18 14:38:04,396 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 176 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:38:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-18 14:38:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 178. [2018-11-18 14:38:04,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-18 14:38:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 202 transitions. [2018-11-18 14:38:04,406 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 202 transitions. Word has length 48 [2018-11-18 14:38:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:04,406 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 202 transitions. [2018-11-18 14:38:04,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 14:38:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 202 transitions. [2018-11-18 14:38:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 14:38:04,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:04,407 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:38:04,407 INFO L423 AbstractCegarLoop]: === Iteration 12 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:04,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:04,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1927213075, now seen corresponding path program 1 times [2018-11-18 14:38:04,407 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:04,408 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:04,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:04,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:04,473 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 16 treesize of output 13 [2018-11-18 14:38:04,475 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 13 treesize of output 16 [2018-11-18 14:38:04,480 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:04,483 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 14:38:04,483 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,489 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,495 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,503 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:24, output treesize:14 [2018-11-18 14:38:04,535 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 16 treesize of output 12 [2018-11-18 14:38:04,537 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 14:38:04,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,539 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 14:38:04,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-18 14:38:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:04,551 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:04,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:04,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:38:04,637 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:38:04,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:04,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:04,737 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 27 [2018-11-18 14:38:04,740 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 7 treesize of output 1 [2018-11-18 14:38:04,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,774 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 20 treesize of output 16 [2018-11-18 14:38:04,776 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 16 treesize of output 4 [2018-11-18 14:38:04,776 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,777 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,791 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 14:38:04,794 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 16 treesize of output 4 [2018-11-18 14:38:04,794 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,802 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,813 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 14 treesize of output 12 [2018-11-18 14:38:04,815 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 7 treesize of output 1 [2018-11-18 14:38:04,815 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,816 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:04,820 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:38:04,820 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 8 variables, input treesize:59, output treesize:9 [2018-11-18 14:38:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 14:38:04,846 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:04,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 14:38:04,907 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:38:04,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 5, 5] total 16 [2018-11-18 14:38:04,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 14:38:04,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 14:38:04,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:38:04,907 INFO L87 Difference]: Start difference. First operand 178 states and 202 transitions. Second operand 16 states. [2018-11-18 14:38:06,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:06,633 INFO L93 Difference]: Finished difference Result 283 states and 329 transitions. [2018-11-18 14:38:06,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 14:38:06,633 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47 [2018-11-18 14:38:06,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:06,634 INFO L225 Difference]: With dead ends: 283 [2018-11-18 14:38:06,635 INFO L226 Difference]: Without dead ends: 206 [2018-11-18 14:38:06,635 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2018-11-18 14:38:06,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-18 14:38:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 165. [2018-11-18 14:38:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-11-18 14:38:06,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2018-11-18 14:38:06,648 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 47 [2018-11-18 14:38:06,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:06,648 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2018-11-18 14:38:06,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 14:38:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2018-11-18 14:38:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-18 14:38:06,649 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:06,649 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:38:06,650 INFO L423 AbstractCegarLoop]: === Iteration 13 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:06,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:06,650 INFO L82 PathProgramCache]: Analyzing trace with hash 223688830, now seen corresponding path program 1 times [2018-11-18 14:38:06,650 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:06,650 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 17 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 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:06,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:06,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:06,767 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 16 treesize of output 13 [2018-11-18 14:38:06,771 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 13 treesize of output 16 [2018-11-18 14:38:06,776 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:06,781 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 16 treesize of output 23 [2018-11-18 14:38:06,782 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,798 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,846 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 16 treesize of output 13 [2018-11-18 14:38:06,849 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 13 treesize of output 16 [2018-11-18 14:38:06,855 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:06,858 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 16 treesize of output 23 [2018-11-18 14:38:06,859 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,867 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,875 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,889 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:36, output treesize:3 [2018-11-18 14:38:06,979 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 23 treesize of output 19 [2018-11-18 14:38:06,981 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 14:38:06,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:06,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,003 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 23 treesize of output 19 [2018-11-18 14:38:07,005 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 14:38:07,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,009 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,021 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 12 treesize of output 10 [2018-11-18 14:38:07,022 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 5 treesize of output 1 [2018-11-18 14:38:07,023 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,024 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,030 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 12 treesize of output 10 [2018-11-18 14:38:07,032 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 5 treesize of output 1 [2018-11-18 14:38:07,032 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,033 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:07,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:38:07,036 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:47, output treesize:9 [2018-11-18 14:38:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:07,058 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:38:07,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:38:07,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 14:38:07,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 14:38:07,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 14:38:07,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:38:07,060 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand 11 states. [2018-11-18 14:38:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:07,901 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2018-11-18 14:38:07,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:38:07,902 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 51 [2018-11-18 14:38:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:07,902 INFO L225 Difference]: With dead ends: 184 [2018-11-18 14:38:07,903 INFO L226 Difference]: Without dead ends: 181 [2018-11-18 14:38:07,903 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:38:07,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-11-18 14:38:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 168. [2018-11-18 14:38:07,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-11-18 14:38:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2018-11-18 14:38:07,910 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 51 [2018-11-18 14:38:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:07,911 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2018-11-18 14:38:07,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 14:38:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2018-11-18 14:38:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 14:38:07,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:07,912 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:38:07,912 INFO L423 AbstractCegarLoop]: === Iteration 14 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:07,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:07,912 INFO L82 PathProgramCache]: Analyzing trace with hash -2130895557, now seen corresponding path program 1 times [2018-11-18 14:38:07,912 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:07,912 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:07,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:08,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:08,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:38:08,056 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,063 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 14:38:08,076 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 16 treesize of output 13 [2018-11-18 14:38:08,078 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 13 treesize of output 16 [2018-11-18 14:38:08,082 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,086 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 16 treesize of output 23 [2018-11-18 14:38:08,086 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,096 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,101 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,111 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 14:38:08,123 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,124 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,124 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 17 treesize of output 21 [2018-11-18 14:38:08,125 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,135 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,135 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 14:38:08,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,155 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:08,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 13 [2018-11-18 14:38:08,157 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 14:38:08,192 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 8 treesize of output 7 [2018-11-18 14:38:08,193 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,199 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,217 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:34 [2018-11-18 14:38:08,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 14:38:08,288 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 14:38:08,295 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 14:38:08,296 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,310 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,330 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 14:38:08,373 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 13 treesize of output 16 [2018-11-18 14:38:08,379 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:08,382 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 16 treesize of output 23 [2018-11-18 14:38:08,382 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,390 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,398 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,422 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:63, output treesize:74 [2018-11-18 14:38:08,522 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 30 treesize of output 24 [2018-11-18 14:38:08,526 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 14:38:08,527 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:08,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:08,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:08,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 14:38:08,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 14:38:08,599 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 5 treesize of output 1 [2018-11-18 14:38:08,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 14:38:08,612 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,617 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 14:38:08,617 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,618 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:08,619 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 14:38:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:08,644 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:18,392 WARN L180 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-18 14:38:20,868 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 62 [2018-11-18 14:38:21,017 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-11-18 14:38:21,018 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:38:21,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,023 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 48 treesize of output 48 [2018-11-18 14:38:21,027 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,030 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 48 treesize of output 51 [2018-11-18 14:38:21,031 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,064 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,097 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,120 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 14:38:21,247 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-18 14:38:21,251 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,308 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 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 14:38:21,309 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:21,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-18 14:38:21,443 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,443 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 14:38:21,444 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,454 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-18 14:38:21,464 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 20 [2018-11-18 14:38:21,472 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-11-18 14:38:21,495 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:38:21,498 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 27 treesize of output 23 [2018-11-18 14:38:21,502 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,505 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 15 treesize of output 5 [2018-11-18 14:38:21,505 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,513 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,615 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 14:38:21,619 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,621 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 27 treesize of output 16 [2018-11-18 14:38:21,621 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,655 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 14:38:21,664 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-18 14:38:21,693 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:21,696 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,701 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 14:38:21,705 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,730 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 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 14:38:21,854 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-18 14:38:21,857 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,860 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 14:38:21,860 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:21,921 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,934 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 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 14:38:21,935 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:21,937 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,938 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,938 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:21,944 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 29 treesize of output 22 [2018-11-18 14:38:21,945 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,004 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:22,007 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 23 treesize of output 12 [2018-11-18 14:38:22,007 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,034 INFO L267 ElimStorePlain]: Start of recursive call 18: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:38:22,055 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:22,089 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:38:22,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:38:22,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 14:38:22,163 INFO L202 ElimStorePlain]: Needed 22 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 14:38:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:22,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:38:22,266 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:38:22,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:22,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:22,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:38:22,308 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,313 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 14:38:22,322 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 16 treesize of output 13 [2018-11-18 14:38:22,325 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 13 treesize of output 16 [2018-11-18 14:38:22,329 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,332 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 16 treesize of output 23 [2018-11-18 14:38:22,333 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,339 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,354 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 14:38:22,357 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,358 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,358 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 17 treesize of output 21 [2018-11-18 14:38:22,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 14:38:22,373 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,374 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,374 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:22,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 13 [2018-11-18 14:38:22,375 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 14:38:22,410 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 8 treesize of output 7 [2018-11-18 14:38:22,410 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,417 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,434 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,434 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:34 [2018-11-18 14:38:22,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 14:38:22,481 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 14:38:22,489 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 14:38:22,490 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,503 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,524 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 14:38:22,572 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 13 treesize of output 16 [2018-11-18 14:38:22,579 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:22,582 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 16 treesize of output 23 [2018-11-18 14:38:22,583 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,591 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,598 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,625 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:63, output treesize:74 [2018-11-18 14:38:22,650 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 30 treesize of output 24 [2018-11-18 14:38:22,655 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 14:38:22,656 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:22,662 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:22,680 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:22,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 14:38:22,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 14:38:22,743 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 5 treesize of output 1 [2018-11-18 14:38:22,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,757 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 14:38:22,758 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,762 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 14:38:22,762 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,763 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:22,764 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 14:38:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:22,773 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:33,211 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 62 [2018-11-18 14:38:33,331 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-11-18 14:38:33,335 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 48 treesize of output 48 [2018-11-18 14:38:33,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,342 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 48 treesize of output 51 [2018-11-18 14:38:33,343 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:33,365 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:33,366 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:38:33,366 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:33,389 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,427 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 14:38:33,585 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-18 14:38:33,588 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,675 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 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 14:38:33,676 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:33,830 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,837 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 14:38:33,840 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,867 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 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 14:38:33,984 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-18 14:38:33,986 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:33,987 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 23 treesize of output 12 [2018-11-18 14:38:33,988 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,044 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,045 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,045 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,049 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 29 treesize of output 22 [2018-11-18 14:38:34,049 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,052 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,066 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 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 14:38:34,067 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:34,117 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 14:38:34,120 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,147 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:34,174 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:34,194 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 14:38:34,198 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,200 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 27 treesize of output 16 [2018-11-18 14:38:34,200 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,235 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 14:38:34,245 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-18 14:38:34,274 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:34,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 14:38:34,371 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:34,373 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 15 treesize of output 5 [2018-11-18 14:38:34,373 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,379 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-18 14:38:34,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-18 14:38:34,385 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,389 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:34,426 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-18 14:38:34,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:38:34,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 14:38:34,491 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 14:38:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:34,571 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:38:34,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12] total 20 [2018-11-18 14:38:34,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 14:38:34,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 14:38:34,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=330, Unknown=2, NotChecked=0, Total=380 [2018-11-18 14:38:34,572 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand 20 states. [2018-11-18 14:38:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:38:38,972 INFO L93 Difference]: Finished difference Result 209 states and 236 transitions. [2018-11-18 14:38:38,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:38:38,973 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2018-11-18 14:38:38,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:38:38,974 INFO L225 Difference]: With dead ends: 209 [2018-11-18 14:38:38,974 INFO L226 Difference]: Without dead ends: 206 [2018-11-18 14:38:38,975 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 189 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=114, Invalid=586, Unknown=2, NotChecked=0, Total=702 [2018-11-18 14:38:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-18 14:38:38,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 180. [2018-11-18 14:38:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-18 14:38:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 202 transitions. [2018-11-18 14:38:38,987 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 202 transitions. Word has length 53 [2018-11-18 14:38:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:38:38,987 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 202 transitions. [2018-11-18 14:38:38,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 14:38:38,987 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 202 transitions. [2018-11-18 14:38:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 14:38:38,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:38:38,988 INFO L375 BasicCegarLoop]: trace histogram [3, 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 14:38:38,988 INFO L423 AbstractCegarLoop]: === Iteration 15 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:38:38,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:38:38,988 INFO L82 PathProgramCache]: Analyzing trace with hash 259136453, now seen corresponding path program 1 times [2018-11-18 14:38:38,988 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:38:38,988 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 20 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 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:38:39,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:39,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:39,101 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:38:39,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,108 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2018-11-18 14:38:39,126 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 16 treesize of output 13 [2018-11-18 14:38:39,129 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 13 treesize of output 16 [2018-11-18 14:38:39,133 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,137 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 16 treesize of output 23 [2018-11-18 14:38:39,138 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,149 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,159 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,179 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:29, output treesize:17 [2018-11-18 14:38:39,198 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,200 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,200 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 17 treesize of output 21 [2018-11-18 14:38:39,201 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,213 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,213 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:27 [2018-11-18 14:38:39,243 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,245 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,247 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:39,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 19 treesize of output 13 [2018-11-18 14:38:39,248 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-18 14:38:39,302 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 8 treesize of output 7 [2018-11-18 14:38:39,302 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,310 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,332 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:48, output treesize:34 [2018-11-18 14:38:39,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-18 14:38:39,380 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 13 treesize of output 16 [2018-11-18 14:38:39,387 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,392 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 16 treesize of output 23 [2018-11-18 14:38:39,392 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,410 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,502 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2018-11-18 14:38:39,507 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-11-18 14:38:39,515 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:39,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-18 14:38:39,516 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,528 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,546 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,579 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:63, output treesize:74 [2018-11-18 14:38:39,728 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 30 treesize of output 24 [2018-11-18 14:38:39,735 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-11-18 14:38:39,735 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:39,744 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:39,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:39,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:77, output treesize:62 [2018-11-18 14:38:39,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-11-18 14:38:39,842 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 5 treesize of output 1 [2018-11-18 14:38:39,842 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-18 14:38:39,859 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,864 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 14:38:39,864 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,866 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:39,867 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:63, output treesize:4 [2018-11-18 14:38:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:39,900 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:38:44,957 WARN L832 $PredicateComparison]: unable to prove that (forall ((main_~node~1.offset (_ BitVec 32)) (|v_main_#t~malloc39.base_11| (_ BitVec 32)) (|v_main_#t~malloc37.base_10| (_ BitVec 32))) (or (not (= (_ bv0 1) (select (store |c_#valid| |v_main_#t~malloc37.base_10| (_ bv1 1)) |v_main_#t~malloc39.base_11|))) (not (= (_ bv0 32) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |v_main_#t~malloc37.base_10| (store (select |c_#memory_$Pointer$.base| |v_main_#t~malloc37.base_10|) main_~node~1.offset (_ bv0 32))))) (store .cse0 |v_main_#t~malloc39.base_11| (store (store (select .cse0 |v_main_#t~malloc39.base_11|) (_ bv0 32) |v_main_#t~malloc37.base_10|) (_ bv4 32) c_main_~data~0.base))) c_main_~data~0.base) c_main_~data~0.offset))) (not (= (_ bv0 1) (select |c_#valid| |v_main_#t~malloc37.base_10|))))) is different from false [2018-11-18 14:38:45,047 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 62 [2018-11-18 14:38:45,180 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2018-11-18 14:38:45,184 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 48 treesize of output 48 [2018-11-18 14:38:45,188 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,192 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 48 treesize of output 51 [2018-11-18 14:38:45,192 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:45,213 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:45,215 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:38:45,215 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:45,248 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,281 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 57 [2018-11-18 14:38:45,455 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2018-11-18 14:38:45,458 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,519 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 4 case distinctions, treesize of input 39 treesize of output 59 [2018-11-18 14:38:45,519 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:45,679 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 1 case distinctions, treesize of input 41 treesize of output 39 [2018-11-18 14:38:45,686 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,688 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 27 treesize of output 16 [2018-11-18 14:38:45,688 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:45,724 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 23 [2018-11-18 14:38:45,735 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 14:38:45,765 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:45,769 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,774 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2018-11-18 14:38:45,779 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,810 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 4 case distinctions, treesize of input 27 treesize of output 47 [2018-11-18 14:38:45,975 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-11-18 14:38:45,978 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:45,979 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 23 treesize of output 12 [2018-11-18 14:38:45,980 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,057 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,072 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 2 case distinctions, treesize of input 30 treesize of output 31 [2018-11-18 14:38:46,073 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 4 xjuncts. [2018-11-18 14:38:46,075 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,076 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,076 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,081 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 29 treesize of output 22 [2018-11-18 14:38:46,082 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,145 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-18 14:38:46,148 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,176 INFO L267 ElimStorePlain]: Start of recursive call 12: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:46,198 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:46,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2018-11-18 14:38:46,324 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:46,328 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 15 treesize of output 5 [2018-11-18 14:38:46,328 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,336 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2018-11-18 14:38:46,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 4 [2018-11-18 14:38:46,342 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,347 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,405 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-18 14:38:46,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:38:46,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 5 xjuncts. [2018-11-18 14:38:46,490 INFO L202 ElimStorePlain]: Needed 20 recursive calls to eliminate 5 variables, input treesize:103, output treesize:110 [2018-11-18 14:38:46,581 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-11-18 14:38:46,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 14:38:46,583 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 14:38:46,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:38:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:38:46,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:38:46,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:38:46,642 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,647 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2018-11-18 14:38:46,690 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 16 treesize of output 13 [2018-11-18 14:38:46,693 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 13 treesize of output 16 [2018-11-18 14:38:46,697 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:46,699 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 16 treesize of output 23 [2018-11-18 14:38:46,700 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,709 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,746 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 16 treesize of output 13 [2018-11-18 14:38:46,748 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 13 treesize of output 16 [2018-11-18 14:38:46,752 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:46,754 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 16 treesize of output 23 [2018-11-18 14:38:46,754 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,761 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,766 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,778 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:41, output treesize:27 [2018-11-18 14:38:46,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:46,820 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:46,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-18 14:38:46,820 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,829 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:30 [2018-11-18 14:38:46,888 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 21 treesize of output 22 [2018-11-18 14:38:46,891 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 8 treesize of output 7 [2018-11-18 14:38:46,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,924 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 21 treesize of output 22 [2018-11-18 14:38:46,926 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 8 treesize of output 7 [2018-11-18 14:38:46,926 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,932 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:46,946 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:55, output treesize:47 [2018-11-18 14:38:47,119 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 62 [2018-11-18 14:38:47,123 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 14:38:47,123 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:47,613 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 28 treesize of output 30 [2018-11-18 14:38:47,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:47,623 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 16 treesize of output 23 [2018-11-18 14:38:47,624 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:47,648 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:47,686 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:47,823 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 62 [2018-11-18 14:38:47,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:47,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 43 [2018-11-18 14:38:47,836 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:47,837 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:47,840 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 21 treesize of output 37 [2018-11-18 14:38:47,840 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:47,856 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:48,101 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2018-11-18 14:38:48,106 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:48,107 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 14:38:48,107 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:48,119 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:48,258 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 46 [2018-11-18 14:38:48,263 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:48,264 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 36 treesize of output 43 [2018-11-18 14:38:48,265 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:48,307 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:48,311 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:48,314 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:48,425 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 2 case distinctions, treesize of input 35 treesize of output 70 [2018-11-18 14:38:48,426 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-18 14:38:48,473 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:38:48,596 INFO L267 ElimStorePlain]: Start of recursive call 6: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:38:48,671 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:38:48,671 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 5 variables, input treesize:72, output treesize:337 [2018-11-18 14:38:48,989 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2018-11-18 14:38:49,198 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-11-18 14:38:49,415 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-11-18 14:38:49,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 114 [2018-11-18 14:38:49,638 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 95 [2018-11-18 14:38:49,639 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:49,828 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:49,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 91 [2018-11-18 14:38:49,829 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:50,000 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 93 treesize of output 86 [2018-11-18 14:38:50,001 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:50,183 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:50,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 78 [2018-11-18 14:38:50,187 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:50,355 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 88 treesize of output 83 [2018-11-18 14:38:50,355 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:50,515 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:50,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 73 [2018-11-18 14:38:50,524 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:50,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 85 [2018-11-18 14:38:50,673 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:50,809 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:50,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 78 [2018-11-18 14:38:50,810 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:50,973 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-11-18 14:38:51,431 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:51,435 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 76 [2018-11-18 14:38:51,438 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:51,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 14:38:51,438 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:51,460 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:51,461 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 11 treesize of output 4 [2018-11-18 14:38:51,461 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:51,476 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:51,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 96 [2018-11-18 14:38:51,832 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:51,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-18 14:38:51,836 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:51,860 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 5 treesize of output 1 [2018-11-18 14:38:51,860 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:51,878 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:38:52,215 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:38:52,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 70 [2018-11-18 14:38:52,221 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 16 treesize of output 3 [2018-11-18 14:38:52,221 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:52,241 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:38:52,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-18 14:38:52,242 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:52,256 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:52,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: 12 dim-0 vars, and 7 xjuncts. [2018-11-18 14:38:52,549 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 8 variables, input treesize:378, output treesize:454 [2018-11-18 14:38:52,857 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 66 [2018-11-18 14:38:53,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 39 [2018-11-18 14:38:53,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 29 treesize of output 13 [2018-11-18 14:38:53,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:53,057 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 5 treesize of output 1 [2018-11-18 14:38:53,057 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:38:53,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:53,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:38:53,065 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:58, output treesize:4 [2018-11-18 14:38:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:38:53,082 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:39:10,962 WARN L180 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 121 DAG size of output: 75 [2018-11-18 14:39:10,974 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 165 treesize of output 119 [2018-11-18 14:39:11,316 WARN L180 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-11-18 14:39:11,326 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 125 treesize of output 116 [2018-11-18 14:39:11,336 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:11,348 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 116 treesize of output 110 [2018-11-18 14:39:11,349 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,409 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,415 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 138 treesize of output 126 [2018-11-18 14:39:11,419 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:11,427 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 122 treesize of output 113 [2018-11-18 14:39:11,427 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,494 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,500 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 85 treesize of output 82 [2018-11-18 14:39:11,505 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:11,510 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 79 treesize of output 79 [2018-11-18 14:39:11,511 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,553 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:11,786 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 77 [2018-11-18 14:39:12,000 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-11-18 14:39:12,004 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,024 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,038 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 48 treesize of output 75 [2018-11-18 14:39:12,039 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:12,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 57 [2018-11-18 14:39:12,256 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,257 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,272 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 55 [2018-11-18 14:39:12,381 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-11-18 14:39:12,383 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,383 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:12,384 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 30 treesize of output 26 [2018-11-18 14:39:12,384 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,436 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,438 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 32 [2018-11-18 14:39:12,443 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:12,446 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,447 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:12,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 25 [2018-11-18 14:39:12,453 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,483 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:12,509 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:12,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 49 [2018-11-18 14:39:12,529 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 37 treesize of output 22 [2018-11-18 14:39:12,529 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,571 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 40 treesize of output 24 [2018-11-18 14:39:12,571 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,601 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:12,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-11-18 14:39:12,755 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 22 treesize of output 9 [2018-11-18 14:39:12,755 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,765 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:12,854 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 6 xjuncts. [2018-11-18 14:39:12,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 80 [2018-11-18 14:39:13,109 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-11-18 14:39:13,112 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,249 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 4 case distinctions, treesize of input 63 treesize of output 81 [2018-11-18 14:39:13,250 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 4 xjuncts. [2018-11-18 14:39:13,455 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 52 treesize of output 46 [2018-11-18 14:39:13,471 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 2 case distinctions, treesize of input 34 treesize of output 41 [2018-11-18 14:39:13,570 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,573 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 31 [2018-11-18 14:39:13,578 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:13,580 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:39:13,580 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,581 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:39:13,581 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,585 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 28 [2018-11-18 14:39:13,590 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:13,629 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,630 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,630 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 17 treesize of output 11 [2018-11-18 14:39:13,630 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,651 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:13,664 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:13,693 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 60 treesize of output 52 [2018-11-18 14:39:13,704 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:13,726 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:13,727 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 0 case distinctions, treesize of input 38 treesize of output 49 [2018-11-18 14:39:13,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 32 [2018-11-18 14:39:13,795 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,796 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-18 14:39:13,796 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,808 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,816 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:13,819 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 64 treesize of output 54 [2018-11-18 14:39:13,887 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,887 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:13,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:13,925 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 80 [2018-11-18 14:39:14,539 WARN L180 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 88 [2018-11-18 14:39:14,543 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 38 treesize of output 25 [2018-11-18 14:39:14,543 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:14,713 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,715 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,715 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,716 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 29 treesize of output 20 [2018-11-18 14:39:14,716 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:14,808 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,810 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,812 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2018-11-18 14:39:14,819 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:14,962 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,964 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:14,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 37 [2018-11-18 14:39:14,971 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:15,009 INFO L267 ElimStorePlain]: Start of recursive call 35: 5 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:15,042 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:15,171 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 54 treesize of output 42 [2018-11-18 14:39:15,174 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 28 treesize of output 13 [2018-11-18 14:39:15,174 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:15,183 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:15,250 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:39:15,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 9 xjuncts. [2018-11-18 14:39:16,173 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 165 treesize of output 149 [2018-11-18 14:39:16,712 WARN L180 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2018-11-18 14:39:16,720 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 52 treesize of output 52 [2018-11-18 14:39:16,728 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:16,736 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 49 treesize of output 52 [2018-11-18 14:39:16,737 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:16,800 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:16,809 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 92 treesize of output 86 [2018-11-18 14:39:16,822 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:16,834 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 86 treesize of output 83 [2018-11-18 14:39:16,835 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:16,911 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:17,237 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 58 [2018-11-18 14:39:17,381 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-11-18 14:39:17,385 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:17,400 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:17,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:17,423 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 40 treesize of output 67 [2018-11-18 14:39:17,423 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:17,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-18 14:39:17,912 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:17,926 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 1 case distinctions, treesize of input 28 treesize of output 22 [2018-11-18 14:39:17,926 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:18,005 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:18,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-11-18 14:39:18,014 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 22 treesize of output 9 [2018-11-18 14:39:18,014 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:18,041 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:18,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 43 [2018-11-18 14:39:18,265 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,268 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 31 treesize of output 18 [2018-11-18 14:39:18,268 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:18,396 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,410 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 1 case distinctions, treesize of input 34 treesize of output 28 [2018-11-18 14:39:18,411 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:18,680 INFO L267 ElimStorePlain]: Start of recursive call 53: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:18,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2018-11-18 14:39:18,693 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,694 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,711 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 28 treesize of output 46 [2018-11-18 14:39:18,774 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,787 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 1 case distinctions, treesize of input 31 treesize of output 22 [2018-11-18 14:39:18,787 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:18,825 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,825 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:18,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:18,831 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 24 treesize of output 22 [2018-11-18 14:39:18,831 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:18,851 INFO L267 ElimStorePlain]: Start of recursive call 57: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:18,898 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:19,061 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:19,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 56 [2018-11-18 14:39:19,215 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,228 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,250 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 48 treesize of output 65 [2018-11-18 14:39:19,250 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:19,257 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,278 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,285 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,299 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 53 treesize of output 79 [2018-11-18 14:39:19,300 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:19,304 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,317 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,324 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:19,338 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 40 treesize of output 67 [2018-11-18 14:39:19,338 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:20,062 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2018-11-18 14:39:20,068 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 22 treesize of output 9 [2018-11-18 14:39:20,068 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:20,089 INFO L267 ElimStorePlain]: Start of recursive call 64: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:20,092 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 50 treesize of output 42 [2018-11-18 14:39:20,096 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,098 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,312 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,327 INFO L303 Elim1Store]: Index analysis took 234 ms [2018-11-18 14:39:20,347 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 34 treesize of output 57 [2018-11-18 14:39:20,454 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2018-11-18 14:39:20,458 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 37 treesize of output 35 [2018-11-18 14:39:20,483 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 4 xjuncts. [2018-11-18 14:39:20,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,586 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,588 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:20,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2018-11-18 14:39:20,596 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:20,665 INFO L267 ElimStorePlain]: Start of recursive call 67: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:20,880 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:20,886 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-11-18 14:39:20,892 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:20,922 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 1 case distinctions, treesize of input 28 treesize of output 22 [2018-11-18 14:39:20,923 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,008 INFO L267 ElimStorePlain]: Start of recursive call 70: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,011 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 46 treesize of output 40 [2018-11-18 14:39:21,014 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,016 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,029 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 28 treesize of output 46 [2018-11-18 14:39:21,103 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2018-11-18 14:39:21,109 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,145 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,146 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 17 treesize of output 12 [2018-11-18 14:39:21,146 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:21,159 INFO L267 ElimStorePlain]: Start of recursive call 73: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,217 INFO L267 ElimStorePlain]: Start of recursive call 72: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 14:39:21,534 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,538 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 28 treesize of output 15 [2018-11-18 14:39:21,539 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:21,636 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,695 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 1 case distinctions, treesize of input 31 treesize of output 25 [2018-11-18 14:39:21,696 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:21,890 INFO L267 ElimStorePlain]: Start of recursive call 76: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:21,913 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 1 case distinctions, treesize of input 52 treesize of output 50 [2018-11-18 14:39:21,918 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,930 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,954 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 38 treesize of output 56 [2018-11-18 14:39:21,960 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:21,976 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 49 treesize of output 62 [2018-11-18 14:39:22,081 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 1 case distinctions, treesize of input 42 treesize of output 33 [2018-11-18 14:39:22,082 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:22,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,211 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 28 treesize of output 19 [2018-11-18 14:39:22,211 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:22,278 INFO L267 ElimStorePlain]: Start of recursive call 81: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:22,533 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,536 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,561 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,606 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 64 [2018-11-18 14:39:22,763 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2018-11-18 14:39:22,767 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,770 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 31 [2018-11-18 14:39:22,783 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:22,942 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,942 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:22,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 41 treesize of output 42 [2018-11-18 14:39:22,977 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 4 xjuncts. [2018-11-18 14:39:23,230 INFO L267 ElimStorePlain]: Start of recursive call 84: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:23,369 INFO L267 ElimStorePlain]: Start of recursive call 80: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:23,565 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:23,583 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:23,633 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 56 [2018-11-18 14:39:23,641 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:23,641 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:23,699 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 64 [2018-11-18 14:39:23,886 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-11-18 14:39:23,890 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:23,921 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 2 case distinctions, treesize of input 44 treesize of output 34 [2018-11-18 14:39:23,921 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:24,173 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:24,173 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:24,176 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:24,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2018-11-18 14:39:24,189 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:24,322 INFO L267 ElimStorePlain]: Start of recursive call 88: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:24,621 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:24,661 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 4 case distinctions, treesize of input 36 treesize of output 51 [2018-11-18 14:39:24,962 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2018-11-18 14:39:24,979 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 2 case distinctions, treesize of input 39 treesize of output 30 [2018-11-18 14:39:24,979 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:25,128 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:25,128 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 32 treesize of output 22 [2018-11-18 14:39:25,128 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:25,278 INFO L267 ElimStorePlain]: Start of recursive call 91: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:25,464 INFO L267 ElimStorePlain]: Start of recursive call 87: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:25,819 INFO L267 ElimStorePlain]: Start of recursive call 79: 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-18 14:39:25,923 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:26,061 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:26,605 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 95 treesize of output 79 [2018-11-18 14:39:26,771 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-11-18 14:39:26,776 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 48 treesize of output 48 [2018-11-18 14:39:26,786 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:26,801 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 48 treesize of output 51 [2018-11-18 14:39:26,801 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:26,840 INFO L267 ElimStorePlain]: Start of recursive call 95: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:26,846 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 61 treesize of output 58 [2018-11-18 14:39:26,851 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:26,859 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 54 treesize of output 54 [2018-11-18 14:39:26,859 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:26,907 INFO L267 ElimStorePlain]: Start of recursive call 97: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:27,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 59 [2018-11-18 14:39:27,229 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-18 14:39:27,234 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,260 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 47 treesize of output 64 [2018-11-18 14:39:27,260 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:27,386 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 37 treesize of output 33 [2018-11-18 14:39:27,402 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 2 case distinctions, treesize of input 21 treesize of output 31 [2018-11-18 14:39:27,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,470 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2018-11-18 14:39:27,471 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:27,501 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,502 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,506 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2018-11-18 14:39:27,513 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:27,529 INFO L267 ElimStorePlain]: Start of recursive call 102: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:27,546 INFO L267 ElimStorePlain]: Start of recursive call 101: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:27,550 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 41 [2018-11-18 14:39:27,554 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,557 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,564 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:27,588 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 65 [2018-11-18 14:39:27,847 WARN L180 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2018-11-18 14:39:27,849 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,851 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-11-18 14:39:27,852 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:27,946 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,946 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,947 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,947 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:27,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-11-18 14:39:27,952 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:28,003 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,005 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,005 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,007 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2018-11-18 14:39:28,016 INFO L267 ElimStorePlain]: Start of recursive call 109: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:28,043 INFO L267 ElimStorePlain]: Start of recursive call 106: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:28,053 INFO L267 ElimStorePlain]: Start of recursive call 105: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:28,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2018-11-18 14:39:28,129 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,131 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 21 treesize of output 10 [2018-11-18 14:39:28,131 INFO L267 ElimStorePlain]: Start of recursive call 111: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:28,140 INFO L267 ElimStorePlain]: Start of recursive call 110: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:28,170 INFO L267 ElimStorePlain]: Start of recursive call 99: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:28,264 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 71 [2018-11-18 14:39:28,970 WARN L180 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 153 [2018-11-18 14:39:28,974 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,977 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:28,983 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:29,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 96 [2018-11-18 14:39:29,273 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2018-11-18 14:39:29,277 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,283 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 56 [2018-11-18 14:39:29,284 INFO L267 ElimStorePlain]: Start of recursive call 114: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:29,370 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,372 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,372 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 69 [2018-11-18 14:39:29,384 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:29,458 INFO L267 ElimStorePlain]: Start of recursive call 113: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:29,938 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:29,963 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 39 treesize of output 57 [2018-11-18 14:39:29,964 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:30,429 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 1 case distinctions, treesize of input 48 treesize of output 46 [2018-11-18 14:39:30,433 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,433 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,454 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 52 [2018-11-18 14:39:30,571 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-11-18 14:39:30,574 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,577 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2018-11-18 14:39:30,585 INFO L267 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:30,587 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,588 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 29 [2018-11-18 14:39:30,593 INFO L267 ElimStorePlain]: Start of recursive call 120: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:30,668 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,669 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-11-18 14:39:30,669 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:30,708 INFO L267 ElimStorePlain]: Start of recursive call 118: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:30,757 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,760 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:30,806 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 65 [2018-11-18 14:39:31,057 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2018-11-18 14:39:31,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,060 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-11-18 14:39:31,065 INFO L267 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,069 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,069 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,071 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 37 [2018-11-18 14:39:31,074 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,205 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,205 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,210 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,211 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41 [2018-11-18 14:39:31,221 INFO L267 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:31,223 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,223 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,225 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,226 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,232 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 45 [2018-11-18 14:39:31,237 INFO L267 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:31,336 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,337 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 33 treesize of output 22 [2018-11-18 14:39:31,339 INFO L267 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,376 INFO L267 ElimStorePlain]: Start of recursive call 122: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-18 14:39:31,399 INFO L267 ElimStorePlain]: Start of recursive call 117: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:31,408 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:31,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 51 [2018-11-18 14:39:31,432 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,438 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 33 treesize of output 21 [2018-11-18 14:39:31,438 INFO L267 ElimStorePlain]: Start of recursive call 129: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,535 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,540 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 30 treesize of output 18 [2018-11-18 14:39:31,540 INFO L267 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,560 INFO L267 ElimStorePlain]: Start of recursive call 128: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-11-18 14:39:31,923 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,926 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 10 [2018-11-18 14:39:31,926 INFO L267 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,929 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:31,931 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 21 treesize of output 10 [2018-11-18 14:39:31,931 INFO L267 ElimStorePlain]: Start of recursive call 133: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:31,949 INFO L267 ElimStorePlain]: Start of recursive call 131: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:32,075 INFO L267 ElimStorePlain]: Start of recursive call 112: 2 dim-1 vars, 7 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-18 14:39:32,134 INFO L267 ElimStorePlain]: Start of recursive call 94: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-18 14:39:32,140 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 98 treesize of output 82 [2018-11-18 14:39:32,226 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 48 treesize of output 48 [2018-11-18 14:39:32,229 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,232 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 48 treesize of output 51 [2018-11-18 14:39:32,232 INFO L267 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,241 INFO L267 ElimStorePlain]: Start of recursive call 135: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,244 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 61 treesize of output 58 [2018-11-18 14:39:32,246 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,249 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 54 treesize of output 54 [2018-11-18 14:39:32,249 INFO L267 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,261 INFO L267 ElimStorePlain]: Start of recursive call 137: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,324 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 56 [2018-11-18 14:39:32,412 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,414 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,414 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,415 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 79 [2018-11-18 14:39:32,482 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,482 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-18 14:39:32,482 INFO L267 ElimStorePlain]: Start of recursive call 141: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,497 INFO L267 ElimStorePlain]: Start of recursive call 140: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,535 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 1 case distinctions, treesize of input 44 treesize of output 42 [2018-11-18 14:39:32,537 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,538 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,539 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,540 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,542 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 46 [2018-11-18 14:39:32,573 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 26 treesize of output 13 [2018-11-18 14:39:32,573 INFO L267 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,580 INFO L267 ElimStorePlain]: Start of recursive call 143: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,598 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,600 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,600 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,601 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,603 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,606 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-11-18 14:39:32,636 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,638 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 14 [2018-11-18 14:39:32,639 INFO L267 ElimStorePlain]: Start of recursive call 146: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,646 INFO L267 ElimStorePlain]: Start of recursive call 145: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,650 INFO L267 ElimStorePlain]: Start of recursive call 142: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,657 INFO L267 ElimStorePlain]: Start of recursive call 139: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 52 [2018-11-18 14:39:32,730 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,733 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,750 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 39 treesize of output 56 [2018-11-18 14:39:32,750 INFO L267 ElimStorePlain]: Start of recursive call 148: End of recursive call: and 2 xjuncts. [2018-11-18 14:39:32,780 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 41 treesize of output 33 [2018-11-18 14:39:32,783 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,785 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,785 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,786 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,788 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,790 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-11-18 14:39:32,820 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,821 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 14 [2018-11-18 14:39:32,822 INFO L267 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,829 INFO L267 ElimStorePlain]: Start of recursive call 150: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,831 INFO L267 ElimStorePlain]: Start of recursive call 149: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,833 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 14:39:32,836 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:32,838 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 21 treesize of output 24 [2018-11-18 14:39:32,855 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,855 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:32,855 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 15 treesize of output 9 [2018-11-18 14:39:32,856 INFO L267 ElimStorePlain]: Start of recursive call 154: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,857 INFO L267 ElimStorePlain]: Start of recursive call 153: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,859 INFO L267 ElimStorePlain]: Start of recursive call 152: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:32,866 INFO L267 ElimStorePlain]: Start of recursive call 147: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:32,883 INFO L267 ElimStorePlain]: Start of recursive call 134: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:32,888 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 102 treesize of output 86 [2018-11-18 14:39:33,013 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-11-18 14:39:33,019 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 48 treesize of output 48 [2018-11-18 14:39:33,022 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,025 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 48 treesize of output 51 [2018-11-18 14:39:33,025 INFO L267 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,038 INFO L267 ElimStorePlain]: Start of recursive call 156: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,073 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 56 [2018-11-18 14:39:33,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-11-18 14:39:33,146 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,147 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,147 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 43 [2018-11-18 14:39:33,195 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,195 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-11-18 14:39:33,203 INFO L267 ElimStorePlain]: Start of recursive call 161: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,206 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,207 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,207 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-18 14:39:33,212 INFO L267 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,244 INFO L267 ElimStorePlain]: Start of recursive call 160: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:33,266 INFO L267 ElimStorePlain]: Start of recursive call 159: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:33,284 INFO L267 ElimStorePlain]: Start of recursive call 158: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:33,312 INFO L267 ElimStorePlain]: Start of recursive call 155: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 14:39:33,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 80 [2018-11-18 14:39:33,424 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-11-18 14:39:33,428 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 48 treesize of output 48 [2018-11-18 14:39:33,431 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,434 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 48 treesize of output 51 [2018-11-18 14:39:33,435 INFO L267 ElimStorePlain]: Start of recursive call 165: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,451 INFO L267 ElimStorePlain]: Start of recursive call 164: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 64 [2018-11-18 14:39:33,651 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2018-11-18 14:39:33,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2018-11-18 14:39:33,661 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:33,663 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 21 treesize of output 10 [2018-11-18 14:39:33,664 INFO L267 ElimStorePlain]: Start of recursive call 168: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,670 INFO L267 ElimStorePlain]: Start of recursive call 167: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,679 INFO L267 ElimStorePlain]: Start of recursive call 166: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:33,688 INFO L267 ElimStorePlain]: Start of recursive call 163: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:34,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 3 dim-2 vars, End of recursive call: 12 dim-0 vars, and 17 xjuncts. [2018-11-18 14:39:34,056 INFO L202 ElimStorePlain]: Needed 168 recursive calls to eliminate 12 variables, input treesize:371, output treesize:292 [2018-11-18 14:39:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:39:34,588 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 14:39:34,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14, 14] total 40 [2018-11-18 14:39:34,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-18 14:39:34,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-18 14:39:34,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1361, Unknown=5, NotChecked=74, Total=1560 [2018-11-18 14:39:34,590 INFO L87 Difference]: Start difference. First operand 180 states and 202 transitions. Second operand 40 states. [2018-11-18 14:39:37,349 WARN L180 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 133 DAG size of output: 32 [2018-11-18 14:39:37,938 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2018-11-18 14:39:39,201 WARN L180 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 70 [2018-11-18 14:39:41,647 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 142 DAG size of output: 83 [2018-11-18 14:39:42,150 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-11-18 14:39:43,127 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 61 [2018-11-18 14:39:44,189 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 52 [2018-11-18 14:39:45,164 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2018-11-18 14:39:46,168 WARN L180 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 162 [2018-11-18 14:39:47,213 WARN L180 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 170 [2018-11-18 14:39:48,184 WARN L180 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 93 [2018-11-18 14:39:50,885 WARN L180 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 96 [2018-11-18 14:39:55,899 WARN L180 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 98 [2018-11-18 14:39:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:39:56,731 INFO L93 Difference]: Finished difference Result 350 states and 400 transitions. [2018-11-18 14:39:56,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 14:39:56,733 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 53 [2018-11-18 14:39:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:39:56,734 INFO L225 Difference]: With dead ends: 350 [2018-11-18 14:39:56,734 INFO L226 Difference]: Without dead ends: 272 [2018-11-18 14:39:56,735 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 175 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=393, Invalid=3028, Unknown=5, NotChecked=114, Total=3540 [2018-11-18 14:39:56,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-11-18 14:39:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 246. [2018-11-18 14:39:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-11-18 14:39:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 272 transitions. [2018-11-18 14:39:56,754 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 272 transitions. Word has length 53 [2018-11-18 14:39:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:39:56,754 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 272 transitions. [2018-11-18 14:39:56,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-18 14:39:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 272 transitions. [2018-11-18 14:39:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 14:39:56,755 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:39:56,755 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:39:56,755 INFO L423 AbstractCegarLoop]: === Iteration 16 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:39:56,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:39:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1450736162, now seen corresponding path program 1 times [2018-11-18 14:39:56,756 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:39:56,756 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 22 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 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:39:56,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:39:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:39:56,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:39:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:39:56,804 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:39:56,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:39:56,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:39:56,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:39:56,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:39:56,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:39:56,806 INFO L87 Difference]: Start difference. First operand 246 states and 272 transitions. Second operand 6 states. [2018-11-18 14:39:56,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:39:56,940 INFO L93 Difference]: Finished difference Result 313 states and 357 transitions. [2018-11-18 14:39:56,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 14:39:56,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-18 14:39:56,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:39:56,942 INFO L225 Difference]: With dead ends: 313 [2018-11-18 14:39:56,942 INFO L226 Difference]: Without dead ends: 259 [2018-11-18 14:39:56,942 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:39:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-18 14:39:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 252. [2018-11-18 14:39:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-11-18 14:39:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 280 transitions. [2018-11-18 14:39:56,956 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 280 transitions. Word has length 56 [2018-11-18 14:39:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:39:56,956 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 280 transitions. [2018-11-18 14:39:56,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:39:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 280 transitions. [2018-11-18 14:39:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 14:39:56,957 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:39:56,957 INFO L375 BasicCegarLoop]: trace histogram [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, 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 14:39:56,957 INFO L423 AbstractCegarLoop]: === Iteration 17 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:39:56,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:39:56,958 INFO L82 PathProgramCache]: Analyzing trace with hash -466740315, now seen corresponding path program 1 times [2018-11-18 14:39:56,958 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:39:56,958 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 23 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 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:39:56,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:39:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:39:56,999 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:39:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 14:39:57,060 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:39:57,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:39:57,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:39:57,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:39:57,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:39:57,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:39:57,063 INFO L87 Difference]: Start difference. First operand 252 states and 280 transitions. Second operand 10 states. [2018-11-18 14:39:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:39:57,471 INFO L93 Difference]: Finished difference Result 295 states and 338 transitions. [2018-11-18 14:39:57,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:39:57,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-18 14:39:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:39:57,474 INFO L225 Difference]: With dead ends: 295 [2018-11-18 14:39:57,474 INFO L226 Difference]: Without dead ends: 292 [2018-11-18 14:39:57,474 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:39:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-11-18 14:39:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 265. [2018-11-18 14:39:57,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-11-18 14:39:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 301 transitions. [2018-11-18 14:39:57,489 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 301 transitions. Word has length 57 [2018-11-18 14:39:57,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:39:57,489 INFO L480 AbstractCegarLoop]: Abstraction has 265 states and 301 transitions. [2018-11-18 14:39:57,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:39:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 301 transitions. [2018-11-18 14:39:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 14:39:57,490 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:39:57,490 INFO L375 BasicCegarLoop]: trace histogram [2, 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 14:39:57,490 INFO L423 AbstractCegarLoop]: === Iteration 18 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:39:57,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:39:57,491 INFO L82 PathProgramCache]: Analyzing trace with hash -652735797, now seen corresponding path program 1 times [2018-11-18 14:39:57,491 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:39:57,491 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 24 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 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:39:57,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:39:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:39:57,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:39:57,587 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 15 treesize of output 11 [2018-11-18 14:39:57,589 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 11 treesize of output 3 [2018-11-18 14:39:57,589 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:57,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:57,600 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 15 treesize of output 11 [2018-11-18 14:39:57,602 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 11 treesize of output 3 [2018-11-18 14:39:57,602 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:57,603 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:57,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:57,609 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-11-18 14:39:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 14:39:57,619 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:39:57,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:39:57,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:39:57,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:39:57,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:39:57,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:39:57,622 INFO L87 Difference]: Start difference. First operand 265 states and 301 transitions. Second operand 5 states. [2018-11-18 14:39:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:39:58,215 INFO L93 Difference]: Finished difference Result 267 states and 302 transitions. [2018-11-18 14:39:58,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:39:58,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-11-18 14:39:58,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:39:58,222 INFO L225 Difference]: With dead ends: 267 [2018-11-18 14:39:58,222 INFO L226 Difference]: Without dead ends: 247 [2018-11-18 14:39:58,222 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:39:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-18 14:39:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2018-11-18 14:39:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-11-18 14:39:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 280 transitions. [2018-11-18 14:39:58,244 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 280 transitions. Word has length 57 [2018-11-18 14:39:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:39:58,244 INFO L480 AbstractCegarLoop]: Abstraction has 247 states and 280 transitions. [2018-11-18 14:39:58,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:39:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 280 transitions. [2018-11-18 14:39:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 14:39:58,245 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:39:58,245 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:39:58,245 INFO L423 AbstractCegarLoop]: === Iteration 19 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:39:58,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:39:58,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2041931539, now seen corresponding path program 1 times [2018-11-18 14:39:58,246 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 14:39:58,246 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d625e1d3-4dac-4025-a8b8-8fbffad7016d/bin-2019/utaipan/cvc4nyu Starting monitored process 25 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 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:39:58,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:39:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:39:58,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:39:58,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-18 14:39:58,387 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,389 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-18 14:39:58,399 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,402 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,403 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 19 treesize of output 23 [2018-11-18 14:39:58,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:39:58,452 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 8 treesize of output 7 [2018-11-18 14:39:58,452 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,455 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-18 14:39:58,482 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 8 treesize of output 7 [2018-11-18 14:39:58,482 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,485 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,497 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:44, output treesize:33 [2018-11-18 14:39:58,560 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 24 treesize of output 25 [2018-11-18 14:39:58,565 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 13 treesize of output 16 [2018-11-18 14:39:58,572 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,577 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 16 treesize of output 23 [2018-11-18 14:39:58,577 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,592 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,612 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,669 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 24 treesize of output 25 [2018-11-18 14:39:58,672 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 13 treesize of output 16 [2018-11-18 14:39:58,678 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,682 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 16 treesize of output 23 [2018-11-18 14:39:58,682 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,690 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,701 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,730 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,730 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:65, output treesize:57 [2018-11-18 14:39:58,750 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,751 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,751 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:58,752 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 27 treesize of output 58 [2018-11-18 14:39:58,752 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,775 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:76 [2018-11-18 14:39:58,812 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:58,812 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:58,813 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 37 [2018-11-18 14:39:58,814 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 59 [2018-11-18 14:39:58,922 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 8 treesize of output 7 [2018-11-18 14:39:58,922 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,937 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:58,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 70 [2018-11-18 14:39:59,001 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 8 treesize of output 7 [2018-11-18 14:39:59,001 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,016 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,052 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,053 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:112, output treesize:91 [2018-11-18 14:39:59,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 87 [2018-11-18 14:39:59,160 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 13 treesize of output 16 [2018-11-18 14:39:59,170 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,173 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 16 treesize of output 23 [2018-11-18 14:39:59,174 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,188 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,227 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,320 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 104 [2018-11-18 14:39:59,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-18 14:39:59,356 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2018-11-18 14:39:59,357 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,370 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,395 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,444 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:120, output treesize:175 [2018-11-18 14:39:59,836 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,847 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,850 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:59,852 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:39:59,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 194 [2018-11-18 14:39:59,886 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:39:59,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 14:39:59,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,922 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 45 [2018-11-18 14:39:59,923 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:39:59,941 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2018-11-18 14:39:59,941 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:39:59,959 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 5 treesize of output 1 [2018-11-18 14:39:59,959 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:39:59,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 14:40:00,006 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:00,007 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:00,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 82 [2018-11-18 14:40:00,042 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 47 [2018-11-18 14:40:00,042 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,055 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-18 14:40:00,055 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,062 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 5 treesize of output 1 [2018-11-18 14:40:00,062 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,067 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 11 treesize of output 3 [2018-11-18 14:40:00,068 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,069 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:40:00,073 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 3 variables, input treesize:231, output treesize:7 [2018-11-18 14:40:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:40:00,122 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 14:40:09,581 WARN L180 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-11-18 14:40:21,037 WARN L180 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 85 [2018-11-18 14:40:23,049 WARN L832 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_120 (_ BitVec 32)) (v_prenex_119 (_ BitVec 32)) (v_prenex_123 (_ BitVec 32)) (v_prenex_122 (_ BitVec 32)) (v_prenex_121 (_ BitVec 32))) (let ((.cse4 (bvadd c_main_~item~0.offset (_ bv4 32)))) (let ((.cse0 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.base| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.base) .cse4 v_prenex_123)))) (store .cse6 v_prenex_121 (store (select .cse6 v_prenex_121) v_prenex_119 (_ bv0 32)))))) (store .cse5 v_prenex_120 (store (store (select .cse5 v_prenex_120) (_ bv0 32) v_prenex_121) (_ bv4 32) c_main_~item~0.base))))) (let ((.cse1 (select .cse0 c_main_~item~0.base))) (or (= (select (select .cse0 (select .cse1 c_main_~item~0.offset)) (select (select (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$.offset| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.offset| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.offset) .cse4 v_prenex_122)))) (store .cse3 v_prenex_121 (store (select .cse3 v_prenex_121) v_prenex_119 (_ bv0 32)))))) (store .cse2 v_prenex_120 (store (store (select .cse2 v_prenex_120) (_ bv0 32) v_prenex_119) (_ bv4 32) c_main_~item~0.offset))) c_main_~item~0.base) c_main_~item~0.offset)) (_ bv0 32)) (not (= (select (store |c_#valid| v_prenex_121 (_ bv1 1)) v_prenex_120) (_ bv0 1))) (not (= (select |c_#valid| v_prenex_121) (_ bv0 1))) (= v_prenex_120 (_ bv0 32)) (not (= (select .cse1 .cse4) (_ bv0 32)))))))) (forall ((v_subst_2 (_ BitVec 32)) (|v_main_#t~malloc39.base_15| (_ BitVec 32)) (main_~data~0.offset (_ BitVec 32)) (main_~data~0.base (_ BitVec 32)) (|v_main_#t~malloc37.base_14| (_ BitVec 32))) (let ((.cse8 (bvadd c_main_~item~0.offset (_ bv4 32)))) (let ((.cse7 (select (let ((.cse12 (let ((.cse13 (store |c_#memory_$Pointer$.base| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.base| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.base) .cse8 main_~data~0.base)))) (store .cse13 |v_main_#t~malloc37.base_14| (store (select .cse13 |v_main_#t~malloc37.base_14|) v_subst_2 (_ bv0 32)))))) (store .cse12 |v_main_#t~malloc39.base_15| (store (store (select .cse12 |v_main_#t~malloc39.base_15|) (_ bv0 32) |v_main_#t~malloc37.base_14|) (_ bv4 32) c_main_~item~0.base))) c_main_~item~0.base))) (or (not (= (select (store |c_#valid| |v_main_#t~malloc37.base_14| (_ bv1 1)) |v_main_#t~malloc39.base_15|) (_ bv0 1))) (not (= (select .cse7 .cse8) (_ bv0 32))) (= |v_main_#t~malloc39.base_15| (_ bv0 32)) (= (_ bv0 32) (let ((.cse9 (let ((.cse10 (let ((.cse11 (store |c_#memory_$Pointer$.offset| c_main_~item~0.base (store (store (select |c_#memory_$Pointer$.offset| c_main_~item~0.base) c_main_~item~0.offset c_main_~node~1.offset) .cse8 main_~data~0.offset)))) (store .cse11 |v_main_#t~malloc37.base_14| (store (select .cse11 |v_main_#t~malloc37.base_14|) v_subst_2 (_ bv0 32)))))) (store .cse10 |v_main_#t~malloc39.base_15| (store (store (select .cse10 |v_main_#t~malloc39.base_15|) (_ bv0 32) v_subst_2) (_ bv4 32) c_main_~item~0.offset))))) (select (select .cse9 (select .cse7 c_main_~item~0.offset)) (select (select .cse9 c_main_~item~0.base) c_main_~item~0.offset)))) (not (= (select |c_#valid| |v_main_#t~malloc37.base_14|) (_ bv0 1)))))))) is different from false [2018-11-18 14:40:23,131 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 594 treesize of output 475 [2018-11-18 14:40:23,530 WARN L180 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2018-11-18 14:40:23,543 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-18 14:40:23,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:23,694 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:23,705 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:23,900 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 400 treesize of output 391 [2018-11-18 14:40:23,910 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 377 treesize of output 380 [2018-11-18 14:40:23,919 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:23,920 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 24 [2018-11-18 14:40:23,920 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:24,002 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:40:24,559 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:24,566 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 370 treesize of output 376 [2018-11-18 14:40:24,575 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:24,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:24,592 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 22 treesize of output 25 [2018-11-18 14:40:24,592 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:24,664 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:40:25,121 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:25,122 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:25,184 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 1 case distinctions, treesize of input 370 treesize of output 353 [2018-11-18 14:40:25,459 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-11-18 14:40:25,465 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 9 treesize of output 8 [2018-11-18 14:40:25,466 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:25,567 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:25,567 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:25,637 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 326 [2018-11-18 14:40:25,646 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 318 treesize of output 312 [2018-11-18 14:40:25,647 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:25,802 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:25,803 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:25,803 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 313 [2018-11-18 14:40:25,919 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-11-18 14:40:25,924 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 290 treesize of output 286 [2018-11-18 14:40:25,925 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-18 14:40:25,969 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:40:26,094 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:40:26,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 14:40:26,313 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 14:40:26,314 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_225 term size 43 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.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java: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 14:40:26,317 INFO L168 Benchmark]: Toolchain (without parser) took 155117.01 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.9 MB). Free memory was 945.4 MB in the beginning and 794.0 MB in the end (delta: 151.4 MB). Peak memory consumption was 409.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:40:26,317 INFO L168 Benchmark]: CDTParser took 0.15 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 14:40:26,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 945.4 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:40:26,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.27 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 14:40:26,318 INFO L168 Benchmark]: Boogie Preprocessor took 33.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:40:26,318 INFO L168 Benchmark]: RCFGBuilder took 507.86 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:40:26,318 INFO L168 Benchmark]: TraceAbstraction took 154132.59 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.1 MB). Free memory was 1.0 GB in the beginning and 794.0 MB in the end (delta: 246.9 MB). Peak memory consumption was 379.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:40:26,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 419.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 945.4 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.27 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 33.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 507.86 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: 58.5 MB). Peak memory consumption was 58.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 154132.59 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 132.1 MB). Free memory was 1.0 GB in the beginning and 794.0 MB in the end (delta: 246.9 MB). Peak memory consumption was 379.0 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_225 term size 43 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_225 term size 43: 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...